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Toyota1990–2021 Critical issues documented

Toyota Land Cruiser 100: common faults & what to check

Thinking about buying a used Toyota Land Cruiser 100 (1990–2021) in New Zealand? We've documented 33 known faults for this model spanning suspension, body & rust, engine, and cooling. Each researched and verified before it's published. The most serious issues here are rated critical. Every one is listed below with its symptoms and repair cost, and each has its own page with where to look and what to ask the seller. Free, no account needed.

Check this exact Toyota Land Cruiser 100

  • Odometer history
  • Money owing
  • Reported stolen
  • Ownership history
  • Official NZ vehicle register data
  • NZ owned and operated

Type the plate for the free basics. The full record is a paid check from $13.49, one car at a time, no subscription.

No NZ plate yet, or buying in Australia? Pick the generation and engine and start a free check below. New to KickTyres? How the check works →

33

Documented faults

Critical

Most serious

$900–$3,800

Typical repair

7

Systems covered

Which Toyota Land Cruiser 100 are you looking at?

1 generation variant documented. Pick the shape you recognise: the faults, the servicing and the timeline below all narrow to it. Free, no account needed.

Now narrow it to the engine

A 1.8 and a 2.4 of the same car do not fail the same way, so the faults below narrow to the engine as well as the year. Free, no account needed.

Start your free check on this Toyota Land Cruiser 100

No plate needed. You get the risk score, the buyer's checklist and the guided inspection for the exact car you picked above — not the whole nameplate.

Toyota Land Cruiser 100Engine not picked yet

Pick the engine above first: the Land Cruiser 100 came with 8, and without it the report has to show all of their faults. Pick the engine

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Can't confirm for this car

Toyota Land Cruiser 100

Nothing has been narrowed yet, so nothing below is a claim about a particular car. Pick a year and an engine to see which faults apply.

Tell us the engine, or check the engine code on the car, before relying on this.

matched on no vehicle context

What to look out for

The checks worth doing on a Toyota Land Cruiser 100 before you hand over any money. Every documented fault is listed below, each with its own page.

  • Serious issue

    Observe vehicle ride height with all four corners — they should be level and at normal height.

    See why

    Active Height Control (AHC) Hydraulic Suspension System Failure

    The optional Active Height Control (AHC) hydraulic suspension system fitted to many 100 series Land Cruisers is one of the most notorious and expensive failure points on the platform. The system uses a hydraulic pump, nitrogen-filled accumulators at each corner, steel hard lines, rubber hoses, and height sensors. Accumulators lose nitrogen charge over 10-15 years, causing the vehicle to sag to the bump stops overnight. The hydraulic pump, solenoids, and height sensors also fail independently. Complete system overhaul is extremely costly; many owners convert to aftermarket coilover suspension. Failure is considered nearly universal on unrestored high-mileage examples.

    What you would notice

    • Vehicle sags to the ground or sits very low when parked overnight
    • AHC warning light on the instrument cluster
    • Incorrect or uneven ride height corner-to-corner
    • Hydraulic pump running continuously or failing to activate
    • Slow or non-functional ride height adjustment

    Typically $4,000–$15,000 to put right.

  • Serious issue

    Probe any bubbled paint or scaly rust with a blunt probe to check structural integrity.

    See why

    Chassis Rail, Sill, and Floor Pan Rust (All Variants)

    80 series Land Cruisers are now 25-35 years old and structural rust is endemic, particularly in the inner sill box sections, chassis outriggers, rear crossmembers, floor pan, and wheel arch inner lips. NZ and AU examples from coastal or high-rainfall environments are especially affected. Structural rust can cause WOF/roadworthy failure, void towing capacity ratings, and compromise occupant safety in a collision. Assessment requires a proper underbody inspection on a hoist, not a cursory visual.

    What you would notice

    • Rust bubbling or flaking paint on lower sills or rear quarter panels
    • Soft or holed floor pan visible from inside the cabin
    • Rust-coloured water staining on interior carpet
    • WOF refusal citing structural corrosion
    • Scale rust visible on chassis rails when viewed from under the vehicle

    Typically $2,000–$9,500 to put right.

  • Serious issue

    Start from cold and observe idle quality, then repeat after a full warm-up cycle.

    See why

    Injection Pump Plunger and Barrel Wear (1HD-FTE Denso VE Pump)

    The Denso VE-type distributor injection pump on the 1HD-FTE uses a precision-machined plunger and barrel assembly that wears progressively, particularly when operated on low-lubricity diesel or when injection timing has drifted. Wear causes fuel pressure to drop, resulting in hard hot-starting, rough idle, heavy black smoke under load, and substantial power loss. Rebuild or replacement is one of the most expensive and commonly documented repair events on this engine in the NZ/AU market, typically manifesting between 180,000 and 300,000 km.

    What you would notice

    • Hard hot-starting after the engine has warmed up
    • Rough or hunting idle
    • Heavy black smoke under acceleration
    • Significant loss of power under load
    • Fuel injection timing fault codes if scan tool connected

    Typically $3,000–$8,000 to put right.

  • Serious issue

    Inspect the coolant overflow tank for oil contamination or bubbling.

    See why

    Head Gasket Failure Due to Head Bolt Torque Loss (1HD-FTE 4.2L)

    The 1HD-FTE diesel engine suffers from head bolt torque relaxation over time, causing the head gasket to lose clamping pressure and fail. Any overheating event accelerates failure as the aluminium head distorts. Symptoms include coolant entering the oil or combustion chamber, white exhaust smoke, bubbling in the overflow tank, and rapid coolant loss. Toyota acknowledged the issue in Japanese-market service notes; many workshops fit upgraded ARP-style head studs when rebuilding to prevent recurrence.

    What you would notice

    • White exhaust smoke on cold start or under load
    • Coolant loss with no visible external leak
    • Milky or creamy residue on oil filler cap
    • Bubbling in coolant overflow reservoir
    • Engine overheating

    Typically $3,500–$7,500 to put right.

  • Serious issue

    Check the exhaust for persistent white smoke under hard acceleration.

    See why

    Head Gasket Failure Under Towing Load (1HD-T 4.2L Turbo Diesel)

    The 1HD-T turbocharged diesel is susceptible to head gasket failure, particularly on vehicles used for heavy towing or those that have experienced overheating. The original head bolts are torque-to-yield single-use fasteners; reuse during any previous head work significantly increases re-failure risk. The factory head bolt design is widely considered inadequate for sustained towing loads, and a head stud conversion is a common and recommended preventative upgrade in the 80 series community.

    What you would notice

    • White smoke from exhaust, especially under hard load or towing
    • Coolant loss with no external leak
    • Temperature gauge climbing above normal under load
    • Oil contamination in coolant
    • Loss of power on sustained inclines

    Typically $2,800–$6,500 to put right.

  • Serious issue

    Start engine cold from overnight sit and listen immediately for chain rattle from the front of the engine lasting more than 2-3 seconds.

    See why

    2UZ-FE Timing Chain Guide Rail Deterioration

    The plastic timing chain guide rails on the 2UZ-FE 4.7L V8 engine deteriorate with age and mileage, typically becoming critical beyond 180,000 km. The nylon composite rails crack and shed fragments that contaminate engine oil and accelerate bearing wear. Complete rail disintegration allows the timing chain to jump or derail, causing catastrophic valve-to-piston contact and terminal engine damage. Cold-start chain rattle lasting more than a few seconds is the primary warning sign. Full timing chain kit replacement including all guide rails, tensioners, and both chains is the only permanent repair.

    What you would notice

    • Loud chain rattle on cold start that may diminish after warmup
    • Persistent ticking or slapping noise from front of engine
    • Metal particles or shavings visible in engine oil on dipstick
    • Check engine light with camshaft position sensor codes
    • Rough running or misfires if chain has jumped a tooth

    Typically $2,800–$5,500 to put right.

See all 33 documented issuesEverything researched for the Toyota Land Cruiser 100, including 10 rated critical.
Depends on which engine this Toyota Land Cruiser 100 has — 33Each of these is documented for one particular engine. Pick the year and engine above to see which of them apply.
Engine, transmission & cooling22

01Injection Pump Plunger and Barrel Wear (1HD-FTE Denso VE Pump)

Start from cold and observe idle quality, then repeat after a full warm-up cycle.diesel1998–2007Engine
CommonEngine $3,000–$8,000 to fix

Can't confirm for this car

The Denso VE-type distributor injection pump on the 1HD-FTE uses a precision-machined plunger and barrel assembly that wears progressively, particularly when operated on low-lubricity diesel or when injection timing has drifted. Wear causes fuel pressure to drop, resulting in hard hot-starting, rough idle, heavy black smoke under load, and substantial power loss. Rebuild or replacement is one of the most expensive and commonly documented repair events on this engine in the NZ/AU market, typically manifesting between 180,000 and 300,000 km.

Symptoms to notice

  • Hard hot-starting after the engine has warmed up
  • Rough or hunting idle
  • Heavy black smoke under acceleration
  • Significant loss of power under load
  • Fuel injection timing fault codes if scan tool connected

What to check

  1. Start from cold and observe idle quality, then repeat after a full warm-up cycle.
  2. Rev the engine and watch for black smoke from the exhaust.
  3. Ask for a diesel injection pressure test if possible.
  4. Check service records for any injection pump work or fuel system servicing.

Where to look: Left side of the engine block — Denso VE distributor injection pump driven off the camshaft

Parts involved: High-pressure fuel pump.

Ask the seller

  • “Has the injection pump been rebuilt or replaced?”
  • “What fuel has been used — has the vehicle run low-sulphur diesel throughout its life?”
  • “Are there any power complaints or hard-starting episodes in the vehicle history?”
  • “Has injector timing ever been checked or adjusted?”

02Head Gasket Failure Due to Head Bolt Torque Loss (1HD-FTE 4.2L)

Inspect the coolant overflow tank for oil contamination or bubbling.diesel1998–2007Engine
CommonEngine $3,500–$7,500 to fix

Can't confirm for this car

The 1HD-FTE diesel engine suffers from head bolt torque relaxation over time, causing the head gasket to lose clamping pressure and fail. Any overheating event accelerates failure as the aluminium head distorts. Symptoms include coolant entering the oil or combustion chamber, white exhaust smoke, bubbling in the overflow tank, and rapid coolant loss. Toyota acknowledged the issue in Japanese-market service notes; many workshops fit upgraded ARP-style head studs when rebuilding to prevent recurrence.

A removed multi-layer steel head gasket held up, showing staining around the cylinder bore.Example of the part — not this vehicle

A used multi-layer head gasket. Discolouration between a cylinder and a water gallery is the tell.

John Furman · CC BY-SA 3.0 · Wikimedia Commons

Symptoms to notice

  • White exhaust smoke on cold start or under load
  • Coolant loss with no visible external leak
  • Milky or creamy residue on oil filler cap
  • Bubbling in coolant overflow reservoir
  • Engine overheating

What to check

  1. Inspect the coolant overflow tank for oil contamination or bubbling.
  2. Observe a cold start and watch for sustained white smoke.
  3. Check coolant level before and after a warm-up cycle.
  4. Remove the oil filler cap and check for cream or milky residue.

Where to look: Top of engine — cylinder head mating surface to the block, accessible via valve cover

Parts involved: Head gasket.

Ask the seller

  • “Has the head gasket ever been replaced or has the head been skimmed?”
  • “Has the engine ever overheated, even briefly?”
  • “Are upgraded head studs fitted?”
  • “Can you provide service history showing coolant flush intervals?”

03Head Gasket Failure Under Towing Load (1HD-T 4.2L Turbo Diesel)

Check the exhaust for persistent white smoke under hard acceleration.diesel1990–1997Engine
CommonEngine $2,800–$6,500 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

The 1HD-T turbocharged diesel is susceptible to head gasket failure, particularly on vehicles used for heavy towing or those that have experienced overheating. The original head bolts are torque-to-yield single-use fasteners; reuse during any previous head work significantly increases re-failure risk. The factory head bolt design is widely considered inadequate for sustained towing loads, and a head stud conversion is a common and recommended preventative upgrade in the 80 series community.

A removed multi-layer steel head gasket held up, showing staining around the cylinder bore.Example of the part — not this vehicle

A used multi-layer head gasket. Discolouration between a cylinder and a water gallery is the tell.

John Furman · CC BY-SA 3.0 · Wikimedia Commons

Symptoms to notice

  • White smoke from exhaust, especially under hard load or towing
  • Coolant loss with no external leak
  • Temperature gauge climbing above normal under load
  • Oil contamination in coolant
  • Loss of power on sustained inclines

What to check

  1. Check the exhaust for persistent white smoke under hard acceleration.
  2. Inspect the coolant reservoir for any oily residue or bubbling.
  3. Look for evidence of previous head work: fresh sealant at the head/block junction, mismatched paint, new hose clamps clustered in the cooling system.
  4. Ask directly about towing history and any overheating events.

Where to look: Cylinder head gasket, mating surface between head and block

Parts involved: Head gasket, Turbocharger.

Ask the seller

  • “Has the head gasket ever been replaced?”
  • “Was the vehicle used for heavy towing?”
  • “Any overheating incidents in its history?”
  • “Were ARP head studs fitted during any head work?”

042UZ-FE Timing Chain Guide Rail Deterioration

Start engine cold from overnight sit and listen immediately for chain rattle from the front of the engine lasting more than 2-3 seconds.petrol1998–2007EngineRead the full fault: symptoms, where to look, what to ask the seller

05Injection Pump Internal Wear (1HZ 4.2L Naturally Aspirated Diesel)

The 1HZ uses a Bosch VE-type mechanical rotary injection pump that is highly sensitive to fuel quality and contamination.diesel1990–1997Engine
CommonEngine $2,500–$5,500 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

The 1HZ uses a Bosch VE-type mechanical rotary injection pump that is highly sensitive to fuel quality and contamination. Internal wear of the distributor head, rotor, plunger, and delivery valves leads to poor fuel atomisation, reduced delivery pressure, hard starting, and significant power loss. New replacement pumps are scarce; rebuild by a diesel injection specialist is the standard repair path. Contaminated or low-cetane fuel accelerates failure dramatically.

Symptoms to notice

  • Hard or extended cranking before firing, particularly when hot
  • Excessive black smoke under load or hard acceleration
  • Noticeable loss of power and torque compared to expectation
  • Rough or hunting idle
  • Very long crank-to-start time from cold in mild weather

What to check

  1. Perform a hard full-throttle acceleration and observe exhaust smoke colour - moderate black smoke under hard acceleration is expected but heavy persistent black smoke indicates pump or injector wear.
  2. Test hot restart: switch off, wait 5 minutes, restart - difficulty hot-starting is a classic injection pump symptom.
  3. Ask whether injectors have been serviced alongside any pump work.

Where to look: Driver's side of engine, mounted to the front of the cylinder head

Parts involved: High-pressure fuel pump.

Ask the seller

  • “Has the injection pump ever been rebuilt or replaced?”
  • “Any water-in-fuel incidents or contaminated fuel history?”
  • “When were the injectors last serviced or flow-tested?”

06Oil Cooler Failure and Coolant/Oil Cross-Contamination (1HZ 4.2L)

Pull the oil dipstick and examine it for any milky, foamy, or caramel appearance.diesel1990–1997Cooling
CommonCooling $1,800–$4,200 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

The 1HZ engine-mounted oil cooler uses internal passages that share a wall between the oil and coolant circuits. When these passages fail, engine oil and coolant mix, producing emulsified oil and potentially causing journal bearing damage from oil dilution. The failure can be gradual (slow contamination detectable at oil changes) or sudden and severe. Repair requires cooler replacement, full system flush of both circuits, and inspection for downstream engine damage.

Symptoms to notice

  • Milky or caramel-coloured oil visible on dipstick or filler cap
  • Brown sludge or oily residue in coolant overflow reservoir
  • Unexplained coolant loss with no visible external leak
  • Overheating in severe cases
  • Grey or white-tinged exhaust smoke

What to check

  1. Pull the oil dipstick and examine it for any milky, foamy, or caramel appearance.
  2. Ask for the date of the last oil change and whether any contamination was noted.
  3. Remove the coolant reservoir cap with the engine cold and look for oily sheen or brown contamination floating on the surface.

Where to look: Internal to engine block, oil and coolant passages adjacent within the block casting

Ask the seller

  • “Has the oil cooler ever been replaced?”
  • “Any history of milky oil or contaminated coolant?”
  • “When were oil and coolant last changed, and what did they look like?”

07Timing Belt Failure Risk — Interference Engine (2UZ-FE 4.7L V8)

Ask for documented service records showing timing belt replacement.petrol1998–2007Engine
OccasionalEngine $800–$1,800 to fix

Can't confirm for this car

The 2UZ-FE 4.7L V8 drives its camshafts via a rubber timing belt, not a chain. This is an interference engine — belt failure at speed causes immediate piston-to-valve contact and catastrophic engine destruction. Toyota specifies replacement at 100,000 km or 10 years, but many imported examples arrive in NZ/AU with unknown belt history. Water pump failure is a secondary failure mode that can destroy the belt simultaneously. A complete belt service including tensioner, idler pulleys, and water pump is mandatory at purchase if history is not documented.

Symptoms to notice

  • No warning prior to failure — sudden engine stop
  • Engine cranks but will not start after belt snaps
  • Ticking or rattling from timing cover area if tensioner is weakening
  • Coolant leak from water pump area if water pump is failing

What to check

  1. Ask for documented service records showing timing belt replacement.
  2. Check for a sticker on the timing cover showing last belt date and mileage.
  3. If no documentation is available, budget for immediate replacement at purchase.
  4. Inspect the coolant hose area near the water pump for weeping.

Where to look: Front of engine — timing belt cover on the 4.7L V8, spanning both cam banks

Parts involved: Timing belt.

Ask the seller

  • “When was the timing belt last replaced and at what odometer reading?”
  • “Was the water pump replaced at the same time?”
  • “Were the tensioner and idler pulleys also replaced?”

08A343F / A750F Automatic Transmission Clutch Pack Wear and Solenoid Faults

Check the transmission dipstick — smell the fluid for burning and examine colour (should be red; dark brown or black indicates breakdown).1998–2007Transmission
OccasionalTransmission $3,500–$9,000 to fix

Can't confirm for this car

The 100 series uses a Toyota A343F (4-speed, earlier models) or A750F (5-speed, later models) automatic transmission. Both units suffer from clutch pack wear and torque converter slip on high-mileage vehicles, particularly those used for towing or repeated off-road use. The A750F additionally develops shift solenoid faults that trigger transmission warning lights. Fluid degradation accelerates wear — the factory drain interval is inadequate for hard-use conditions. Rebuild is expensive and requires specialist transmission experience.

Symptoms to notice

  • Slipping between gears or delayed engagement from park or reverse
  • Transmission warning light on instrument cluster
  • Harsh, jerky, or hunting gear changes
  • Transmission fluid dark, burnt-smelling, or contaminated with metallic particles
  • Late upshifts or failure to shift under load

What to check

Check the transmission dipstick — smell the fluid for burning and examine colour (should be red; dark brown or black indicates breakdown). Look for fluid leaks around the transmission pan, tail shaft, or cooler lines. During the test drive, note engagement quality from park and any slipping under load. If a workshop inspection is possible: Pull transmission fault codes with a scan tool.

Where to look: Transmission tunnel — automatic gearbox mounted behind the engine, dipstick accessible on the passenger side

Parts involved: Clutch.

Ask the seller

  • “Has the transmission fluid been serviced and at what intervals?”
  • “Has the vehicle ever slipped between gears or hesitated on engagement?”
  • “Has the transmission been rebuilt or replaced?”
  • “Has the vehicle been used for towing or regular off-road use?”

09F33A-FTV 3.3 V6 injector faults disrupting DPF regeneration

Check the multi-information display for DPF soot-level and regeneration history if accessible.diesel2021 onwardEngine
OccasionalEngine $1,500–$6,000 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

The 300 series' new 3.3 twin-turbo V6 diesel has had early reports of fuel injector faults which upset combustion and stop the DPF regenerating properly, leading to soot-loading warnings and limp mode. The engine is also named in Australian court action over emissions-system behaviour. Most affected vehicles are fixed under warranty, but as trucks age out of warranty an injector-plus-forced-regen bill lands on the owner.

A single common-rail diesel fuel injector photographed against a plain background.Example of the part — not this vehicle

A common-rail diesel injector. Contamination damages the nozzle at the tip.

Panoha · CC BY-SA 3.0 · Wikimedia Commons

Symptoms to notice

  • DPF warning light or frequent regeneration messages
  • Diesel smell and elevated idle during regens
  • Rough idle or misfire
  • Reduced power / limp mode

What to check

  1. Check the multi-information display for DPF soot-level and regeneration history if accessible.
  2. Ask for the service printout showing any injector or DPF-related warranty work.
  3. On the test drive include 20+ minutes of open-road running and watch for warning lights.

Where to look: Injectors under the engine cover; DPF in the exhaust under the vehicle, forward of the mid-point

Parts involved: Fuel injector, Diesel particulate filter.

Ask the seller

  • “Has it had any injector or DPF warranty work — can I see the dealer history?”
  • “Is it mostly driven short trips around town?”
  • “Is any factory warranty still remaining and transferable?”

102UZ-FE V8 Secondary Timing Chain Rattle

Start the engine cold from overnight.petrol1998–2007Engine
OccasionalEngine $2,500–$5,500 to fix

Can't confirm for this car

The 2UZ-FE 4.7L V8 petrol uses a primary and secondary timing chain system. The secondary chains (driving the camshaft from the intermediate shaft) develop slack as chain guides and tensioners wear. This produces a distinctive rattle on cold start that diminishes as oil pressure builds. If neglected the chain can jump timing causing misfires, or in severe cases snap. This is a documented issue on higher-mileage 100-series V8s in NZ/AU.

The front of a dual overhead camshaft engine with the timing cover removed, exposing the timing chain and sprockets.Example of the part — not this vehicle

The front of a twin-cam engine with the timing cover off — chain, sprockets and guides.

Logansenf · CC BY-SA 4.0 · Wikimedia Commons

Symptoms to notice

  • Metallic rattling noise from engine on cold start, typically disappearing within 10-30 seconds
  • Timing-related misfires or rough running if chain has jumped
  • Check engine light with camshaft position or timing codes
  • Oil consumption in some cases

What to check

  1. Start the engine cold from overnight.
  2. Listen for chain rattle from the front of the engine in the first 30 seconds.
  3. If rattle is present or intermittent, consider pre-purchase inspection by a Toyota specialist.
  4. Check engine oil level and condition - low or degraded oil accelerates chain wear.
  5. Scan for timing or camshaft fault codes.

Where to look: Front of 2UZ-FE engine, behind timing cover - secondary chains on each cylinder bank

Parts involved: Timing chain.

Ask the seller

  • “Has the timing chain or guides been replaced?”
  • “Does the engine rattle on cold start?”
  • “How regularly has the engine oil been changed?”

111HD-FTE Injection Pump Governor Weight Wear

Drive the vehicle until fully warm (minimum 15 minutes), then sit at idle in a quiet environment and observe RPM stability.diesel1998–2007EngineRead the full fault: symptoms, where to look, what to ask the seller

12Valve Stem Seal Deterioration and Oil Consumption (2UZ-FE 4.7L V8)

Start the engine from cold and observe the exhaust for blue smoke.petrol1998–2007Engine
CommonEngine $2,000–$4,500 to fix

Can't confirm for this car

The rubber valve stem seals on the 2UZ-FE V8 harden and shrink with age, allowing engine oil to be drawn past the valve guides and burned during combustion. This produces characteristic blue smoke on cold startup or during the overrun after deceleration. Oil consumption can reach 1 litre per 1,000 km on severely affected engines. The repair requires full cylinder head removal and replacement of all 32 valve stem seals — a labour-intensive job. Very common on examples over 200,000 km, and widely documented across all 2UZ-FE applications.

Symptoms to notice

  • Blue smoke from exhaust on cold startup
  • Blue smoke on deceleration or overrun after sustained speed
  • Engine oil consumption exceeding 500 ml per 1,000 km
  • Oily deposits on spark plugs
  • Oil smell from exhaust

What to check

  1. Start the engine from cold and observe the exhaust for blue smoke.
  2. Blip the throttle after a sustained period of idling and watch for a blue puff.
  3. Check the oil dipstick level and ask the seller how frequently oil is topped up between services.

Where to look: Cylinder heads — valve guides and stem seals across both banks of the V8

Parts involved: Cylinder head.

Ask the seller

  • “How much oil does the engine use between services?”
  • “Has blue smoke ever been noticed on startup or when lifting off the throttle?”
  • “Have the valve stem seals been replaced?”

13Timing Chain and Guide Wear (1FZ-FE 4.5L)

Cold-start the engine after it has sat overnight and immediately listen at the front of the engine for chain rattle.petrol1993–1997Engine
CommonEngine $1,800–$3,800 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

The 1FZ-FE uses a single-row timing chain with plastic guides and a hydraulic tensioner that wear with age and mileage. Chain stretch and guide deterioration produce a characteristic rattle on cold start that typically fades once oil pressure builds. Left unaddressed, a worn chain can skip a tooth on the camshaft sprocket causing valve timing errors and rough running, or snap entirely causing catastrophic internal engine damage.

The front of a dual overhead camshaft engine with the timing cover removed, exposing the timing chain and sprockets.Example of the part — not this vehicle

The front of a twin-cam engine with the timing cover off — chain, sprockets and guides.

Logansenf · CC BY-SA 4.0 · Wikimedia Commons

Symptoms to notice

  • Metallic rattling or chattering from the front of the engine on cold start
  • Rattle fades or disappears after 15-30 seconds as oil pressure builds
  • Rough idle if chain has skipped a tooth
  • Check engine light in severe cases

What to check

Cold-start the engine after it has sat overnight and immediately listen at the front of the engine for chain rattle. Rattle lasting more than 10-15 seconds indicates significant wear. Ask specifically whether the timing chain, tensioner, or guides have ever been replaced.

Where to look: Front of engine, inside the timing chain cover

Parts involved: Timing chain.

Ask the seller

  • “Has the timing chain, tensioner, or plastic guides ever been replaced?”
  • “Does the engine rattle on cold start?”
  • “What is the recorded mileage and service history?”

14Glow Plug Seizure in Cylinder Head (1HZ 4.2L)

Ask specifically when glow plugs were last replaced and whether any were seized during removal.diesel1990–1997Engine
Very commonEngine $600–$2,800 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

Glow plugs on the 1HZ routinely seize in the aluminium cylinder head due to corrosion and heat cycling over decades of use. Attempting removal of seized plugs risks snapping the plug body flush in the head bore, requiring specialist extraction, thread repair (Helicoil or insert), or in extreme cases head removal. This is a routine maintenance item that becomes a significant repair bill on neglected engines with the original plugs still installed.

A removed six-cylinder diesel engine cylinder head on cardboard, valve-gear side facing up.Example of the part — not this vehicle

A six-cylinder diesel head off the engine, valve-gear side up. Cracks run between the valve seats on the face beneath.

Ll1324 · CC0 · Wikimedia Commons

Symptoms to notice

  • Difficult cold starting, especially below 10 degrees Celsius
  • Glow plug warning light remaining illuminated or failing to extinguish promptly
  • Rough or smoky cold idle
  • White smoke on cold start that persists longer than expected

What to check

Ask specifically when glow plugs were last replaced and whether any were seized during removal. On vehicles with full service records, confirm plugs have been replaced within the last 80,000 km. If a workshop inspection is possible: A diesel specialist can test individual plug resistance with a multimeter and advise on seizure risk before attempting removal.

Where to look: Top of cylinder head, one glow plug per cylinder (6 total), under intake runners

Parts involved: Cylinder head, Glow plug.

Ask the seller

  • “When were the glow plugs last replaced?”
  • “Were any plugs seized or difficult during that service?”
  • “Does the engine start easily on cold mornings?”

15Thermostat Housing Cracking and Coolant Leak (1HZ 4.2L)

diesel1990–1997Cooling
OccasionalCooling $350–$950 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

The cast thermostat housing on the 1HZ engine is prone to cracking from thermal stress and electrolytic corrosion, particularly at the joint where it mates with the aluminium head and at the upper radiator hose connection. A cracked housing produces a coolant leak that worsens as the engine reaches operating temperature and contracts and expands. If not caught promptly, coolant loss leads to overheating.

An annotated photograph of an automotive engine thermostat identifying the wax capsule and both disc valves.Example of the part — not this vehicle

A double-valve engine thermostat, labelled: the wax capsule is what sticks.

Dougsim · CC BY-SA 3.0 · Wikimedia Commons

Symptoms to notice

  • Coolant weeping or dripping from the top front of the engine near the thermostat
  • White mineral deposits or dried coolant residue around the housing
  • Coolant puddle under the front of the engine after a run
  • Overheating if the leak is significant and undetected

What to check

After a full warm-up drive, inspect the thermostat housing (where the upper radiator hose connects at the front top of the engine) for any coolant weeping, white staining, or dried residue indicating a past or current leak. Check coolant level in the reservoir against the cold-fill mark.

Where to look: Front top of engine, thermostat housing at the upper radiator hose connection

Parts involved: Thermostat.

Ask the seller

  • “Has the thermostat or thermostat housing ever been replaced?”
  • “Any history of coolant leaks from the top of the engine?”
  • “When was the coolant last changed?”

16Intercooler Hose Cracking and Boost Leaks (1HD-T 4.2L Turbo Diesel)

With the engine off, trace and physically squeeze all rubber hoses between the turbocharger compressor outlet, intercooler, and intake manifold.diesel1990–1997Engine
CommonEngine $300–$950 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

The rubber intercooler charge pipes on the 1HD-T harden, crack, and split with age, particularly at clamp points and tight bends. A split hose creates a boost leak that dramatically reduces turbo response and power, and can cause black smoke and poor fuel economy under load. Silicon hose replacement kits are widely available and are a recommended upgrade on any 1HD-T over 15 years old. Boost leaks are straightforward to find with a workshop pressure test.

Symptoms to notice

  • Noticeably reduced power under load, particularly when turbo should be spooling
  • Whistling or hissing sound under hard acceleration
  • Heavy black smoke under acceleration with power loss
  • Poor fuel economy for the engine type
  • Boost gauge reading lower than expected if fitted

What to check

With the engine off, trace and physically squeeze all rubber hoses between the turbocharger compressor outlet, intercooler, and intake manifold. Hard or brittle rubber, visible cracking, or soft collapsed sections are immediate red flags. A workshop can perform a pressurised boost leak test to find pinhole leaks not visible by eye.

Where to look: Turbocharger outlet to intercooler inlet hose, and intercooler outlet to intake manifold hose

Parts involved: Turbocharger.

Ask the seller

  • “Have the intercooler hoses been replaced or upgraded to silicone?”
  • “Any recent reduction in power or performance?”
  • “Has a boost leak test been performed?”

171HD-FTE EGR Valve Carbon Buildup and Sticking

Inspect EGR valve body and intake manifold for heavy carbon deposits.diesel1998–2007EngineRead the full fault: symptoms, where to look, what to ask the seller

182UZ-FE Heater Port Coolant Hose Cracking

With the engine cold, trace all coolant hoses running to the underside and rear of the intake manifold.petrol1998–2007CoolingRead the full fault: symptoms, where to look, what to ask the seller

191HD-FTE Intercooler Boost Pipe Split at Clamp

Visually trace all intercooler hoses from the turbo outlet through to the intake manifold.diesel1998–2007EngineRead the full fault: symptoms, where to look, what to ask the seller

20Oil consumption on early F33A-FTV engines running 0W-20

Check the dipstick/electronic oil level yourself and ask when oil was last added.diesel2021 onwardEngine
OccasionalEngine $100–$3,000 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

Some early 300-series diesels consume noticeable engine oil from low mileage, widely attributed to the very thin 0W-20 oil specified for economy. Toyota considers some consumption normal, but owners report topping up between services. It is mostly a monitoring cost rather than a failure, though ignoring a dropping level risks expensive damage on a new-generation engine.

Symptoms to notice

  • Oil level dropping between services
  • Low-oil warning on long trips
  • Occasional faint blue exhaust haze

What to check

  1. Check the dipstick/electronic oil level yourself and ask when oil was last added.
  2. Look for top-up oil bottles carried in the vehicle.
  3. Ask the selling dealer to document current consumption rate.

Where to look: Engine oil system — checked at the dipstick in the engine bay

Ask the seller

  • “How much oil does it use between services?”
  • “Has Toyota ever done an oil-consumption test on it?”
  • “What oil grade has been used?”

2110-speed automatic harsh or hesitant shifting on early builds

Drive it in heavy-traffic conditions with lots of low-speed shifts, not just open road.diesel2021 onwardTransmission
OccasionalTransmission $200–$1,500 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

Early 300-series owners in Australia reported clunky low-speed shifts, hesitation and occasional harsh downshifts from the new 10-speed automatic, largely addressed by software recalibration at dealers. It is a drivability annoyance more than a failure, but confirm any updates have been done because out-of-warranty transmission diagnosis is expensive.

Symptoms to notice

  • Clunky 1-2 and 2-3 shifts in stop-start traffic
  • Hesitation when accelerating from a rolling stop
  • Occasional harsh downshift when braking

What to check

  1. Drive it in heavy-traffic conditions with lots of low-speed shifts, not just open road.
  2. Ask the dealer to confirm all transmission software campaigns are applied (they can check by VIN).

Where to look: Automatic transmission — behaviour felt through the driveline at low speeds

Ask the seller

  • “Have any transmission software updates or dealer reflashes been done?”
  • “Has it towed heavily?”

22Secondary Air Injection Pump Failure (2UZ-FE 4.7L V8)

Ask the seller if the check engine light has been on.petrol1998–2007Engine
Very commonEngine $400–$1,200 to fix

Can't confirm for this car

The 2UZ-FE uses a secondary air injection (SAI) system to reduce cold-start emissions. The electric air pump is prone to failure due to moisture ingestion and motor burnout. When the pump fails it triggers diagnostic codes (typically P0410 or P0411) and illuminates the check engine light, sometimes accompanied by VSC and traction control warnings due to shared CAN bus diagnostics. This fault is extremely common on imported 100 series V8s and affects the majority of high-mileage examples. The pump body, reed check valves, and associated pressure hoses all deteriorate with age.

Symptoms to notice

  • Check engine light (MIL) illuminated
  • VSC or traction control warning light on
  • DTCs P0410 or P0411 stored in ECU
  • Rattling noise at cold start from failed pump motor
  • Slightly rough cold idle in some cases

What to check

  1. Ask the seller if the check engine light has been on.
  2. Inspect the air injection pump (black cylindrical unit in the engine bay) for signs of rust, water damage, or missing hoses.
  3. If a workshop inspection is possible: Connect an OBD-II scanner and read fault codes — P0410 and P0411 are definitive for this failure.

Where to look: Engine bay — secondary air injection pump mounted near the firewall or inner guard, with hoses running to the exhaust manifolds

Parts involved: High-pressure fuel pump.

Ask the seller

  • “Has the check engine light been on? What codes were stored?”
  • “Has the secondary air injection pump been replaced or deleted?”
  • “Does the VSC warning light illuminate?”
Body, brakes, suspension & interior7

01Active Height Control (AHC) Hydraulic Suspension System Failure

Observe vehicle ride height with all four corners — they should be level and at normal height.1998–2007Suspension
Very commonSuspension $4,000–$15,000 to fix

Can't confirm for this car

The optional Active Height Control (AHC) hydraulic suspension system fitted to many 100 series Land Cruisers is one of the most notorious and expensive failure points on the platform. The system uses a hydraulic pump, nitrogen-filled accumulators at each corner, steel hard lines, rubber hoses, and height sensors. Accumulators lose nitrogen charge over 10-15 years, causing the vehicle to sag to the bump stops overnight. The hydraulic pump, solenoids, and height sensors also fail independently. Complete system overhaul is extremely costly; many owners convert to aftermarket coilover suspension. Failure is considered nearly universal on unrestored high-mileage examples.

Symptoms to notice

  • Vehicle sags to the ground or sits very low when parked overnight
  • AHC warning light on the instrument cluster
  • Incorrect or uneven ride height corner-to-corner
  • Hydraulic pump running continuously or failing to activate
  • Slow or non-functional ride height adjustment

What to check

  1. Observe vehicle ride height with all four corners — they should be level and at normal height.
  2. Look under the vehicle for hydraulic lines showing rust, weeping, or damage.
  3. Ask if the vehicle maintains its height after sitting overnight.
  4. Check the instrument cluster for any AHC warning light.
  5. Test the height adjustment function via the driver's controls if present.

Where to look: All four corners of the vehicle (accumulators at each wheel), hydraulic pump in the engine bay, height sensors mounted at suspension control arms

Ask the seller

  • “Does the vehicle maintain its ride height when parked overnight?”
  • “Has the AHC system been serviced, rebuilt, or converted to coilovers?”
  • “Are there any suspension or AHC warning lights currently or historically?”
  • “Has the hydraulic pump or any accumulator been replaced?”

02Chassis Rail, Sill, and Floor Pan Rust (All Variants)

Probe any bubbled paint or scaly rust with a blunt probe to check structural integrity.1990–1997Body & Rust
CommonBody & Rust $2,000–$9,500 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

80 series Land Cruisers are now 25-35 years old and structural rust is endemic, particularly in the inner sill box sections, chassis outriggers, rear crossmembers, floor pan, and wheel arch inner lips. NZ and AU examples from coastal or high-rainfall environments are especially affected. Structural rust can cause WOF/roadworthy failure, void towing capacity ratings, and compromise occupant safety in a collision. Assessment requires a proper underbody inspection on a hoist, not a cursory visual.

Symptoms to notice

  • Rust bubbling or flaking paint on lower sills or rear quarter panels
  • Soft or holed floor pan visible from inside the cabin
  • Rust-coloured water staining on interior carpet
  • WOF refusal citing structural corrosion
  • Scale rust visible on chassis rails when viewed from under the vehicle

What to check

  1. Probe any bubbled paint or scaly rust with a blunt probe to check structural integrity.
  2. Inspect inside wheel arches where mud packs against the metal and holds moisture.
  3. Insist on a hoist inspection covering the full length of both chassis rails, all four sill box sections, the floor pan, rear crossmember, and spare wheel carrier mount.

Where to look: Chassis rails, inner sill box sections, floor pan, rear crossmember, wheel arch inners

Parts involved: Chassis and structural rust.

Ask the seller

  • “Has the chassis or underside ever been rust-treated, coated, or structurally repaired?”
  • “Where has the vehicle spent most of its life - coastal, farm, or urban?”
  • “Has it failed a WOF for rust at any point?”

03Brake Booster Vacuum Pump Failure and Hose Deterioration (1HD-FTE Diesel)

Diesel engines produce no intake manifold vacuum, so the 1HD-FTE relies on a dedicated camshaft-driven vacuum pump to operate the brake booster.diesel1998–2007Brakes
OccasionalBrakes $500–$1,500 to fix

Can't confirm for this car

Diesel engines produce no intake manifold vacuum, so the 1HD-FTE relies on a dedicated camshaft-driven vacuum pump to operate the brake booster. The pump vanes and internal seals wear over time, reducing or eliminating brake assist. A failed pump results in a significantly harder brake pedal requiring much greater force to stop — a serious safety hazard. The rubber vacuum hose from the pump to the booster also cracks with age. This issue is documented across all 1HD-FTE diesel applications and is frequently overlooked until brake pedal feel has already deteriorated.

Symptoms to notice

  • Hard brake pedal requiring excessive force
  • Increased stopping distance
  • Hissing sound near the brake booster when the pedal is depressed
  • Brake pedal feel changes between engine running and engine off

What to check

Pump the brake pedal 5-6 times with the engine off to exhaust any stored vacuum, then hold the pedal depressed and start the engine — the pedal should drop slightly as vacuum assist engages. If the pedal does not drop, vacuum assist is absent. Inspect the vacuum hose from the pump to the brake booster for cracks or brittleness.

Where to look: Vacuum pump mounted on the rear of the engine block (camshaft-driven), vacuum hose running forward to the brake booster on the firewall

Parts involved: Intake manifold.

Ask the seller

  • “Has the brake vacuum pump been replaced or serviced?”
  • “Has the brake pedal ever felt unusually hard or required more force than normal?”
  • “Has the vacuum hose to the brake booster been replaced?”

04Wheel Arch, Sill, and Lower Body Rust on JDM and AU Imports

Run fingers along the underside of all door sills — flex the metal to feel for weakness.1998–2007Body & Rust
CommonBody & Rust $1,000–$8,000 to fix

Can't confirm for this car

Land Cruiser 100 series vehicles imported to New Zealand and Australia (now 17-27 years old) are susceptible to rust in the rear wheel arches, lower door sills, and floor sections. Mud and road debris pack into the inner wheel arch areas, retaining moisture against the steel. Sill rust is easily hidden under rubber trim and can be structurally significant. NZ coastal environments accelerate corrosion on vehicles with degraded undercoating. Lower tailgate corners, the spare wheel carrier mounting, and the rear floor pan seams are also documented rust locations.

Symptoms to notice

  • Rust bubbling or paint lifting at wheel arch lips or lower sills
  • Rust staining on lower bodywork panels
  • Soft or flexible metal when pressed at sill areas
  • Visible rust holes in inner wheel arch flanges
  • Rust around spare wheel carrier mounting bolts

What to check

  1. Run fingers along the underside of all door sills — flex the metal to feel for weakness.
  2. Remove rubber sill trim if fitted.
  3. Crouch down and inspect all four wheel arch lips for rust bubbling at the seam.
  4. Inspect the floor under the rear cargo area and around the spare wheel well.
  5. Check lower tailgate corners.

Where to look: Lower door sills, rear wheel arch lips and seams, rear floor pan, lower tailgate corners, spare wheel carrier mounting points

Parts involved: Body corrosion.

Ask the seller

  • “Has the vehicle had any rust treatment, panel repairs, or body filler work?”
  • “Is there any rust under the sill trim?”
  • “Has the undercarriage been resprayed or treated with any rust-proofing product?”

05Front Air Suspension Strut Failure (TEMS-equipped)

Observe front ride height from front-on - both corners should sit level and at correct height.1998–2007SuspensionRead the full fault: symptoms, where to look, what to ask the seller

06Rear Air Suspension Airbag & Compressor Burnout

Inspect the rear ride height from side to side with the vehicle on level ground and unloaded.petrol1998–2007SuspensionRead the full fault: symptoms, where to look, what to ask the seller

07Power Steering Pump Bearing and Vane Wear

With the engine running and the vehicle stationary, turn the steering wheel to full lock in each direction and listen for whining from the pump.1998–2007Suspension
CommonSuspension $600–$1,800 to fix

Can't confirm for this car

The hydraulic power steering pump on the 100 series is prone to bearing failure and internal vane wear at high mileage. The characteristic symptom is a whining or groaning noise that worsens at full steering lock. As the pump deteriorates, steering effort increases and fluid pressure becomes inconsistent. Fluid leaks from the pump shaft seal are also common as bearing wear allows shaft play. Replacement is moderately priced but labour to access the pump requires removing ancillary components. Common on examples over 200,000 km.

Symptoms to notice

  • Whining or groaning from the engine bay, louder at full steering lock
  • Increased steering effort, especially at low speed
  • Power steering fluid leaks or residue around the pump
  • Inconsistent or vague steering feel

What to check

  1. With the engine running and the vehicle stationary, turn the steering wheel to full lock in each direction and listen for whining from the pump.
  2. Check the power steering fluid reservoir level and condition — dark or burnt-smelling fluid indicates internal wear.
  3. Inspect the pump mounting area for fluid residue or drips.

Where to look: Engine bay — power steering pump driven by the accessory belt, typically on the passenger side of the engine

Parts involved: Steering rack.

Ask the seller

  • “Has the power steering pump been replaced?”
  • “Is there any whining or groaning when turning at low speed?”
  • “When was the power steering fluid last changed?”
Fluid leaks4

01Power Steering Pump and Rack Seal Leaks

Check the power steering reservoir for correct fluid level and condition (should be clear, not dark).1990–1997Fluid Leaks
CommonFluid Leaks $600–$2,200 to fix

Can't confirm for this car

Unconfirmed. This entry does not match our record of which engines and years this model was sold with, and is awaiting review. Confirm it against the car before acting on it.

Power steering pump shaft seals and steering rack end seals deteriorate with age on the 80 series, causing leaks from minor weeping to significant fluid loss. A low-fluid pump produces a characteristic moan on full lock and can eventually fail, leaving the driver with heavy unassisted steering. The steering rack seals are labour-intensive to replace given the solid front axle layout, increasing repair costs.

Symptoms to notice

  • Power steering fluid puddle under the front of the vehicle after parking
  • Whining or groaning from the steering on full lock or at low speed
  • Stiff or heavy steering, particularly during parking manoeuvres
  • Visible oily residue or staining around the pump body or rack boots
  • Power steering reservoir requiring regular top-up

What to check

  1. Check the power steering reservoir for correct fluid level and condition (should be clear, not dark).
  2. Inspect the pump body and return line fittings for oily residue.
  3. Turn the steering fully lock-to-lock and listen for whining which indicates low fluid or pump wear.
  4. Inspect the rack boots at each end of the steering rack for swelling or oil leaking from tears.

Where to look: Power steering pump on engine front (driver's side), steering rack across the front axle

Parts involved: Steering rack.

Ask the seller

  • “Is the power steering fluid level correct and when was it last topped up?”
  • “Any recent power steering leaks or unusual noise on full lock?”
  • “Has the steering rack, rack seals, or pump been replaced?”

02Front Differential Birfield Outer CV Joint Seal Failure

Inspect inner face of front wheels and front wheel arch liner for grease fling - a sure sign of a split boot.1998–2007Fluid Leaks
OccasionalFluid Leaks $600–$1,800 to fix

Can't confirm for this car

The 100-series front differential uses Birfield (solid inner) outer CV joints sealed by rubber boots. These boots crack and split with age, especially on vehicles used off-road. Once the boot splits, grease is flung out and dirt enters the joint, causing accelerated wear and eventual joint failure. Differential oil can also seep from the axle tube seals into the CV area. A common finding at NZ/AU WoF inspections on 100-series.

A concertina rubber constant-velocity joint boot fitted to a car driveshaft.Example of the part — not this vehicle

The rubber CV boot on a driveshaft — this is the part that splits and throws grease.

Ildar Sagdejev ( Specious ) · CC BY-SA 4.0 · Wikimedia Commons

Symptoms to notice

  • Grease splattered on inside of front wheel and surrounding area
  • Clicking noise from front axle on full steering lock turns
  • Rumbling or grinding from front axle under load
  • WoF failure for damaged CV boot

What to check

  1. Inspect inner face of front wheels and front wheel arch liner for grease fling - a sure sign of a split boot.
  2. Turn wheels to full lock and visually inspect the outer CV boot for splits or tears.
  3. Check front differential casing for oil seepage around axle tube seals.

Where to look: Outer CV (Birfield) joint and boot, both front axle shafts; front differential axle tube seals

Parts involved: Differential, CV joint and boot.

Ask the seller

  • “Have the front CV boots been replaced?”
  • “Has the front differential been serviced?”
  • “Has the vehicle been used off-road in mud or water?”

031HD-FTE Injection Pump Seal Leak

Degrease engine, run to temperature, then inspect the injection pump shaft seal, top cover, and body joints for fresh seepage.diesel1998–2007Fluid Leaks
CommonFluid Leaks $500–$1,400 to fix

Can't confirm for this car

The 1HD-FTE injection pump on the 100-series develops the same external seal leaks as on the 80-series variant of this engine. The front shaft seal and body o-rings allow fuel and oil seepage at high mileage. Given the age of these vehicles in the NZ/AU market, most examples will show some evidence of seepage without remediation. The leak path onto hot exhaust components remains a fire risk.

Symptoms to notice

  • Diesel smell from engine bay when at operating temperature
  • Oily or fuel-wet residue around injection pump body
  • Accumulated grime on timing cover below pump
  • Slight increase in fuel consumption

What to check

Degrease engine, run to temperature, then inspect the injection pump shaft seal, top cover, and body joints for fresh seepage. Check the underside of the timing belt cover for drips or staining.

Where to look: Injection pump, front of 1HD-FTE engine block

Parts involved: High-pressure fuel pump.

Ask the seller

  • “Has the injection pump been resealed or replaced?”
  • “Has any fuel leak been repaired?”

04Front Differential Pinion Oil Seal Failure

Look for oil weeping, active drips, or dried oil residue staining around the seal.1998–2007Fluid Leaks
Very commonFluid Leaks $320–$850 to fix

Can't confirm for this car

The front differential pinion seal on 100 Series Land Cruisers is a high-failure item across both petrol and diesel variants. The seal degrades through age, heat cycling, and off-road use, allowing gear oil to escape along the front propshaft and onto surrounding underbody components. Ongoing fluid loss causes the front differential to run low on lubricant, leading to accelerated pinion bearing and ring-and-pinion gear wear. Seal failure is often progressive and may not be noticed until significant fluid has been lost. Replacement requires removal of the front propshaft and pinion flange and is a routine but time-sensitive repair.

Symptoms to notice

  • Gear oil dripping from front differential nose or propshaft flange area
  • Gear oil smell from front axle when hot
  • Oil film or sling marks on front driveshaft and tunnel area
  • Low front differential fluid level on inspection

What to check

Look for oil weeping, active drips, or dried oil residue staining around the seal. Check for oil sling marks coating the underbody near the front axle. Top up and recheck fluid level. Also inspect rear differential pinion seal as failure rates are similar. If a workshop inspection is possible: Place the vehicle on a hoist and inspect the front differential pinion flange where the front propshaft connects.

Where to look: Front differential, pinion input shaft where front propshaft bolts to the differential nose

Parts involved: Differential.

Ask the seller

  • “Has the front differential pinion seal been replaced recently?”
  • “When were the front and rear differential fluids last changed?”
  • “Has the vehicle been used off-road regularly?”

Toyota Land Cruiser 100 faults in detail

Each of these has its own page: the symptoms, where to look, what to ask the seller and what the repair costs. Free, no account needed.

1HD-FTE EGR Valve Carbon Buildup and StickingMajor · Engine1HD-FTE Injection Pump Governor Weight WearMajor · Engine1HD-FTE Intercooler Boost Pipe Split at ClampMajor · Engine2UZ-FE Heater Port Coolant Hose CrackingMajor · Cooling2UZ-FE Timing Chain Guide Rail DeteriorationCritical · EngineFront Air Suspension Strut Failure (TEMS-equipped)Major · SuspensionRear Air Suspension Airbag & Compressor BurnoutMajor · Suspension

What these repairs cost on other cars

Some of the Toyota Land Cruiser 100’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.

Other Toyota models

Toyota Prado64 documented faultsToyota RAV463 documented faultsToyota Hilux59 documented faultsToyota Land Cruiser 20032 documented faultsToyota Voxy32 documented faultsToyota Wish32 documented faults

Toyota Land Cruiser 100 buyer questions

Is the Toyota Land Cruiser 100 reliable?

Like any used car, it depends on the specific example and its service history. Across the 33 documented faults for the Toyota Land Cruiser 100, the recurring problem areas are suspension, body & rust, and engine. A Toyota Land Cruiser 100 with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.

What are the most common problems with a used Toyota Land Cruiser 100?

We've catalogued 33 known faults for the Toyota Land Cruiser 100, covering suspension, body & rust, and engine. All 33 are written out in full on this page, with the symptoms to notice, what to inspect, and typical repair costs for each. Free to read, no account needed.

How much do repairs cost on a Toyota Land Cruiser 100?

Most single repairs on the Toyota Land Cruiser 100 fall between $900–$3,800 at NZ independent-workshop rates. Some of the 33 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.

Should I get a pre-purchase inspection on a Toyota Land Cruiser 100?

Yes. A Toyota Land Cruiser 100 inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $24.90 far less than the cost of missing one of the faults on this page.