Toyota LC100: common faults & what to check
Thinking about buying a used Toyota LC100 (1998–2007) in New Zealand? We've documented 11 known faults for this model spanning engine, suspension, fluid leaks, 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 LC100
- Odometer history
- Money owing
- Reported stolen
- Ownership history
11
Critical
$600–$1,800
4
Which Toyota LC100 are you looking at?
Start your free check on this Toyota LC100
Pick the engine above first: the LC100 came with 5, and without it the report has to show all of their faults. Pick the engine
Can't confirm for this car
Toyota LC100
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.
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What to look out for
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.
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
Costly issue
Look for oil weeping, active drips, or dried oil residue staining around the seal.
Front Differential Pinion Oil Seal Failure
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.
What you would notice
Costly issue
Observe front ride height from front-on - both corners should sit level and at correct height.
Front Air Suspension Strut Failure (TEMS-equipped)
100-series Land Cruisers fitted with Toyota's TEMS (Electronically Modulated Suspension) use air-assisted front struts that fail with age. The air bladder within the strut cracks or perforates, causing the vehicle to sit low on one or both front corners and lose its electronically-controlled ride-height function. Replacement airbag struts are expensive; many owners convert to conventional coil-over suspension as a more economical alternative. This affects a significant proportion of NZ/AU examples with the TEMS option.
What you would notice
Costly issue
Drive the vehicle until fully warm (minimum 15 minutes), then sit at idle in a quiet environment and observe RPM stability.
1HD-FTE Injection Pump Governor Weight Wear
The mechanical governor assembly inside the Denso distributor-type injection pump on the 1HD-FTE engine uses centrifugal flyweights that wear progressively over time, disrupting fuel delivery regulation at idle and low engine speeds. Worn governor weights fail to accurately modulate pump output causing the idle to hunt, surge, or flutter between approximately 600 and 1,000 rpm. This fault is exacerbated by infrequent fuel filter changes and use of low-quality diesel. A full injection pump rebuild by a diesel injection specialist is required; replacement with a remanufactured unit is the more reliable long-term solution.
What you would notice
Costly issue
Inspect the rear ride height from side to side with the vehicle on level ground and unloaded.
Rear Air Suspension Airbag & Compressor Burnout
Higher-specification UZJ100 variants sold in NZ and AU (VX and Sahara grades) were fitted with rear air suspension for load levelling. The rubber airbags perish and develop leaks over time, forcing the electric compressor to cycle continuously to maintain ride height. Continuous compressor operation beyond its duty cycle burns out the motor windings. A failed system leaves the vehicle sitting low at the rear with no self-correction, degraded handling under load, and potential secondary damage to shock absorbers operating outside their designed range. Many owners elect to convert to aftermarket coil spring conversion kits to eliminate the system permanently.
What you would notice
Costly issue
Degrease engine, run to temperature, then inspect the injection pump shaft seal, top cover, and body joints for fresh seepage.
1HD-FTE Injection Pump Seal Leak
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.
What you would notice
See all 11 documented issues
Depends on which engine this Toyota LC100 has — 11
Engine, transmission & cooling
012UZ-FE Timing Chain Guide Rail Deterioration
Can't confirm for this car
Can't confirm for this car
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.
Example of the part — not this vehicleThe front of a twin-cam engine with the timing cover off — chain, sprockets and guides.
Symptoms to notice
What to check
Ask the seller
022UZ-FE V8 Secondary Timing Chain Rattle
Can't confirm for this car
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.
Example of the part — not this vehicleThe front of a twin-cam engine with the timing cover off — chain, sprockets and guides.
Symptoms to notice
What to check
Ask the seller
031HD-FTE Injection Pump Governor Weight Wear
Can't confirm for this car
Can't confirm for this car
The mechanical governor assembly inside the Denso distributor-type injection pump on the 1HD-FTE engine uses centrifugal flyweights that wear progressively over time, disrupting fuel delivery regulation at idle and low engine speeds. Worn governor weights fail to accurately modulate pump output causing the idle to hunt, surge, or flutter between approximately 600 and 1,000 rpm. This fault is exacerbated by infrequent fuel filter changes and use of low-quality diesel. A full injection pump rebuild by a diesel injection specialist is required; replacement with a remanufactured unit is the more reliable long-term solution.
Symptoms to notice
What to check
Ask the seller
041HD-FTE EGR Valve Carbon Buildup and Sticking
Can't confirm for this car
Can't confirm for this car
The 1HD-FTE 4.2L turbodiesel in the 100-series uses an EGR (exhaust gas recirculation) valve to route soot-laden exhaust back through the intake. Over time soot and carbon accumulate in the valve body causing it to stick open or closed. A stuck-open valve causes rough idle, black smoke, and power loss. A stuck-closed valve throws EGR fault codes. This is one of the most frequently reported 1HD-FTE issues on NZ/AU 100-series.
Symptoms to notice
What to check
Ask the seller
052UZ-FE Heater Port Coolant Hose Cracking
Can't confirm for this car
Can't confirm for this car
The 2UZ-FE V8 engine uses a series of small-diameter rubber hoses that connect to heater circuit ports on the underside of the intake manifold. These hoses are subject to continuous heat soak and age-harden over time, cracking at the manifold connection points where they are partially obscured by surrounding components. Coolant loss from these hoses can be rapid and difficult to trace visually without removing intake components. A vehicle losing coolant without an obvious external source should have these hoses inspected as a priority. Sustained operation with low coolant risks overheating and head gasket failure, both of which are expensive repairs on the 2UZ-FE.
Symptoms to notice
What to check
Ask the seller
061HD-FTE Intercooler Boost Pipe Split at Clamp
Can't confirm for this car
Can't confirm for this car
The rubber intercooler hoses on the HDJ100 age-harden and crack preferentially at the clamp bite points where the hose is under combined mechanical stress and heat cycling. The most failure-prone sections are the large-diameter pipe running from the turbocharger compressor outlet to the front-mounted intercooler, and the pipe from the intercooler outlet to the intake manifold. A split or fully detached pipe results in near-total loss of boost pressure, severe power reduction, heavy black smoke, and potential ingestion of unfiltered air. Replacement with silicone boost hoses and stainless clamps is the accepted preventive upgrade.
Symptoms to notice
What to check
Ask the seller
Body, brakes, suspension & interior
01Front Air Suspension Strut Failure (TEMS-equipped)
Can't confirm for this car
Can't confirm for this car
100-series Land Cruisers fitted with Toyota's TEMS (Electronically Modulated Suspension) use air-assisted front struts that fail with age. The air bladder within the strut cracks or perforates, causing the vehicle to sit low on one or both front corners and lose its electronically-controlled ride-height function. Replacement airbag struts are expensive; many owners convert to conventional coil-over suspension as a more economical alternative. This affects a significant proportion of NZ/AU examples with the TEMS option.
Symptoms to notice
What to check
Ask the seller
02Rear Air Suspension Airbag & Compressor Burnout
Can't confirm for this car
Can't confirm for this car
Higher-specification UZJ100 variants sold in NZ and AU (VX and Sahara grades) were fitted with rear air suspension for load levelling. The rubber airbags perish and develop leaks over time, forcing the electric compressor to cycle continuously to maintain ride height. Continuous compressor operation beyond its duty cycle burns out the motor windings. A failed system leaves the vehicle sitting low at the rear with no self-correction, degraded handling under load, and potential secondary damage to shock absorbers operating outside their designed range. Many owners elect to convert to aftermarket coil spring conversion kits to eliminate the system permanently.
Symptoms to notice
What to check
Ask the seller
Fluid leaks
01Front Differential Birfield Outer CV Joint Seal Failure
Can't confirm for this car
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.
Example of the part — not this vehicleThe rubber CV boot on a driveshaft — this is the part that splits and throws grease.
Symptoms to notice
What to check
Ask the seller
021HD-FTE Injection Pump Seal Leak
Can't confirm for this car
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
What to check
Ask the seller
03Front Differential Pinion Oil Seal Failure
Can't confirm for this car
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
What to check
Ask the seller
What these repairs cost on other cars
Some of the Toyota LC100’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.
Other Toyota models
Toyota LC100 buyer questions
Is the Toyota LC100 reliable?
Like any used car, it depends on the specific example and its service history. Across the 11 documented faults for the Toyota LC100, the recurring problem areas are engine, suspension, and fluid leaks. A Toyota LC100 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 LC100?
We've catalogued 11 known faults for the Toyota LC100, covering engine, suspension, and fluid leaks. All 11 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 LC100?
Most single repairs on the Toyota LC100 fall between $600–$1,800 at NZ independent-workshop rates. Some of the 11 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 LC100?
Yes. A Toyota LC100 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.