Toyota FJ Cruiser: common faults & what to check
Thinking about buying a used Toyota FJ Cruiser (2006–2021) in New Zealand? We've documented 15 known faults for this model spanning engine, suspension, body & rust, and transmission. 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 FJ Cruiser
- Odometer history
- Money owing
- Reported stolen
- Ownership history
15
Critical
$450–$1,400
12
Which Toyota FJ Cruiser are you looking at?
Petrol
Now narrow it to the engine
Start your free check on this Toyota FJ Cruiser
Likely — same engine family
Toyota FJ Cruiser
Narrowed by capacity and fuel. No engine code is recorded for this option, so a fault specific to one engine of that size cannot be confirmed from it.
Matched on capacity and fuel, not on an engine code.
- 1 documented fault names an engine this selection cannot confirm. It is listed separately below.
matched on 4.0L engine
What to look out for
Serious issue
Cold start the engine and listen immediately for a rattling or clattering sound from the upper rear of the engine.
1GR-FE Rear Cam-to-Cam Timing Chain Tensioner Wear
The 1GR-FE 4.0L V6 uses two separate timing chains — a primary chain and a shorter secondary rear cam-to-cam chain. The secondary chain tensioner is oil-pressure fed and wears progressively, especially with infrequent oil changes. A worn tensioner produces a distinctive cold-start rattle from the rear of the engine valley. This is one of the most widely documented mechanical issues on the FJ Cruiser platform, confirmed across hundreds of owner reports and multiple specialist writeups. Ignored wear leads to chain jump and catastrophic valve damage.
What you would notice
Serious issue
Have a second person watch the upper ball joint while you rock the wheel.
Front Upper Ball Joint Wear and Failure
The front suspension of the FJ Cruiser uses upper and lower ball joints in a double-wishbone arrangement. The upper ball joints are documented as a high-wear item, particularly on vehicles that have been used off-road, have been fitted with larger tyres, or have accumulated high kilometres. Worn upper ball joints create handling imprecision and a clunking noise over bumps. In advanced wear, the joint can separate catastrophically, causing sudden loss of steering control — which is a critical safety event. The failure is accelerated by heavy wheel and tyre combinations popular with FJ Cruiser owners.
What you would notice
Serious issue
Inspect the rubber boot for splits or grease expulsion.
Front Lower Control Arm Ball Joint Wear
The pressed-in lower ball joint on the GSJ15 front lower control arm wears progressively under the vehicle's substantial kerb weight (approximately 2,050 kg) and off-road use. Once the boot tears — common in vehicles used on gravel or dirt — contamination accelerates wear rapidly and the joint develops measurable play, compromising steering geometry and creating a safety-critical condition if left unaddressed.
What you would notice
Costly issue
Crouch in front of the vehicle and inspect the front differential housing where the front driveshaft enters (the pinion flange).
Front Differential Pinion Seal Oil Leak
The front differential pinion seal on the FJ Cruiser's solid front axle (Dana-style live axle on the GSJ15W) is a documented high-failure-rate item. The seal deteriorates and allows gear oil to weep or stream from the front pinion. Left unaddressed, the differential runs low on oil leading to pinion bearing and ring-and-pinion wear. The failure is accelerated by regular water crossings and off-road use common to this vehicle's demographic. Multiple NHTSA complaints and forum threads document this as a near-universal wear item by 100,000 km.
What you would notice
Costly issue
Ask for full service history and any record of top-end engine work.
1GR-FE Head Bolt Thread Strip from Factory-Applied Loctite
Toyota applied Loctite threadlocker to head bolts on the 1GR-FE engine at the factory. When the cylinder head is removed for any reason (head gasket, timing cover, water pump), the Loctite bonds so aggressively to the aluminium block threads that extraction strips the threads clean. The block deck then requires thread inserts (Helicoil or Time-Sert) at every bolt hole before reassembly. This turns a routine head gasket job into a significantly more expensive repair and is documented in Toyota service bulletins and extensively in owner forums worldwide.
What you would notice
Costly issue
Inspect the full perimeter of the roof panel where it meets the body — both sides and across the rear.
Roof Seam Rust at Panel Join
The FJ Cruiser's roof is constructed from multiple panels welded together, and the seams — particularly along the sides where the roof panel meets the upper body — are a notorious rust initiation point. The factory seam sealer degrades over time, allowing moisture ingress into the joint. This is accelerated in the NZ and Australian coastal environment, and in vehicles that have had roof racks or accessories fitted that trap water. Rust develops from the inside of the seam outward, meaning it is often well-established by the time bubbling or surface rust is visible from outside. Structural deterioration of the roof join is possible in severely affected vehicles.
What you would notice
Toyota FJ Cruiser service schedule
First Generation (GSJ15) · 2017–2022 · 4.0L (1GR-FE) V6 - Final Edition
Due by distance
- 100,000 km
Replace the serpentine belt and check the water pump for weeping.
- 150,000 km
New suspension bushings and shocks are worth considering, as the factory set-up softens by this point on NZ roads.
- 200,000 km
Time for a thorough cooling system refresh, with a radiator flush and a new thermostat.
First Generation (GSJ15) · 2008–2014 · 4.0L (1GR-FE) V6 - Trail Teams Edition
Due by distance
- 150,000 km
Check the cooling system, particularly the radiator hoses and the water pump.
- 200,000 km
Review the alternator and starter motor, which can start to wear on older 1GR-FE engines.
- 250,000 km
Control arm bushings and shock absorbers often need renewing here to keep the ride right.
First Generation (GSJ15) · 2007–2013 · 4.0L (1GR-FE) V6 - TRD Special Edition
Due by distance
- 150,000 km
Refresh the cooling system including the radiator and thermostat so the 1GR-FE engine keeps the right temperature.
- 200,000 km
Check the suspension parts such as the shocks and springs, as the factory damping fades after this much work.
- 250,000 km
Plan a deep driveline service, checking all the U-joints and changing the transmission fluid to keep the gear changes crisp.
First Generation (GSJ15) · 2006–2016 · 4.0L (1GR-FE) V6 - Base/Standard Trim
Due by distance
- 100,000 km
The original suspension parts can start softening here, and the first set of coolant hoses should be checked for brittleness.
- 150,000 km
Check the alternator and starter motor, and look at the drive belt tensioner assembly.
- 200,000 km
Refreshing the cooling system, radiator and water pump included, is what keeps the 1GR-FE going as long as it is famous for.
See all 15 documented issues
Engine, transmission & cooling1 critical
011GR-FE Rear Cam-to-Cam Timing Chain Tensioner Wear
021GR-FE Head Bolt Thread Strip from Factory-Applied Loctite
031GR-FE Timing Cover Oil Leak (Front Cover Gasket/Seal)
The 1GR-FE V6 has a large timing cover that seals the front of the engine, housing the timing chain, VVT-i sprockets, and the front crankshaft seal. The gasket and the integrated crankshaft seal degrade with age and heat cycling, producing oil leaks from the front of the engine. This is a labour-intensive repair on the V6 because the timing cover requires substantial disassembly to access, and per the Loctite head bolt issue, any related work carries the risk of thread damage. The leak is often initially slow and dismissed, but accelerates and can contaminate the drive belt system if not addressed.
Symptoms to notice
What to check
Ask the seller
04Transfer Case Low-Range Actuator (F-Transfer) Failure
The GSJ15 uses an electronically controlled transfer case with a dedicated actuator motor to engage 4LO. The actuator is mounted externally on the transfer case and is susceptible to water ingress during deep water crossings, as well as connector corrosion in high-humidity environments. Failure of the actuator leaves the vehicle locked in 4HI or 2HI and prevents low-range engagement; in some cases the transfer case will hunt between modes and illuminate the 4WD warning light.
Symptoms to notice
What to check
Ask the seller
05Front Differential Pinion Seal Oil Leak
The front differential pinion seal on the FJ Cruiser's solid front axle (Dana-style live axle on the GSJ15W) is a documented high-failure-rate item. The seal deteriorates and allows gear oil to weep or stream from the front pinion. Left unaddressed, the differential runs low on oil leading to pinion bearing and ring-and-pinion wear. The failure is accelerated by regular water crossings and off-road use common to this vehicle's demographic. Multiple NHTSA complaints and forum threads document this as a near-universal wear item by 100,000 km.
Symptoms to notice
What to check
Ask the seller
06Transfer Case Vacuum Actuator Failure (ADD System)
Body, brakes, suspension & interior2 critical
07Front Upper Ball Joint Wear and Failure
The front suspension of the FJ Cruiser uses upper and lower ball joints in a double-wishbone arrangement. The upper ball joints are documented as a high-wear item, particularly on vehicles that have been used off-road, have been fitted with larger tyres, or have accumulated high kilometres. Worn upper ball joints create handling imprecision and a clunking noise over bumps. In advanced wear, the joint can separate catastrophically, causing sudden loss of steering control — which is a critical safety event. The failure is accelerated by heavy wheel and tyre combinations popular with FJ Cruiser owners.
Example of the part — not this vehicleA separated lower ball joint: the control arm has dropped and the wheel has splayed out under the guard.
Symptoms to notice
What to check
Ask the seller
08Front Lower Control Arm Ball Joint Wear
The pressed-in lower ball joint on the GSJ15 front lower control arm wears progressively under the vehicle's substantial kerb weight (approximately 2,050 kg) and off-road use. Once the boot tears — common in vehicles used on gravel or dirt — contamination accelerates wear rapidly and the joint develops measurable play, compromising steering geometry and creating a safety-critical condition if left unaddressed.
Example of the part — not this vehicleA separated lower ball joint: the control arm has dropped and the wheel has splayed out under the guard.
Symptoms to notice
What to check
Ask the seller
09Body seam and roof gutter rust on imports
FJ Cruisers, especially Japanese and North American imports, rust along roof gutter seams, the rear body seams and around the rear wheel arches where sealant fails, made worse by their boxy panel joins trapping debris and moisture.
Symptoms to notice
What to check
Ask the seller
10Roof Seam Rust at Panel Join
11Rear Spare Tyre Carrier Frame Rust and Hinge Corrosion
12Front Brake Caliper Guide Pin Seizure
The front brake calipers on the GSJ15 use sliding guide pins that require periodic lubrication; when this maintenance is neglected — which is common on vehicles used infrequently or in coastal environments — the pins corrode inside their rubber boots and seize. A seized guide pin prevents the caliper from sliding freely, causing the inboard pad to apply constant light pressure to the rotor while the outboard pad barely contacts, resulting in rapid and uneven pad wear, rotor overheating, and pulling under braking.
Symptoms to notice
What to check
Ask the seller
13Front Sway Bar End Link Wear
The front stabiliser bar end links on the FJ Cruiser use a rubber-bushed ball-and-socket design that deteriorates with age, heat cycling, and off-road flex cycles. The links are a high-stress item given the vehicle's long suspension travel and the leverage exerted by the large 17-inch wheels and all-terrain tyres commonly fitted. Replacement is straightforward and inexpensive but failure is almost universal by 100,000 km.
Symptoms to notice
What to check
Ask the seller
Fluid leaks
14Front differential pinion seal leak
The FJ Cruiser front diff pinion seal weeps gear oil, leaving residue on the front axle and driveshaft flange. Neglected it drops diff oil level and can damage bearings, a common find on higher-km off-road-used examples.
Symptoms to notice
What to check
Ask the seller
Depends on which engine this Toyota FJ Cruiser has — 1
Engine, transmission & cooling
015-speed auto hesitation and harsh shifting
Can't confirm for this car
Can't confirm for this car
The A750 5-speed auto can develop hesitation and a harsh 1-2 or 2-3 shift as fluid ages or valve body wear sets in, especially if the fluid has never been changed. Neglected fluid accelerates clutch pack wear.
Symptoms to notice
What to check
Ask the seller
Toyota FJ Cruiser faults in detail
What these repairs cost on other cars
Some of the Toyota FJ Cruiser’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.
Other Toyota models
Toyota FJ Cruiser buyer questions
Is the Toyota FJ Cruiser reliable?
Like any used car, it depends on the specific example and its service history. Across the 15 documented faults for the Toyota FJ Cruiser, the recurring problem areas are engine, suspension, and body & rust. A Toyota FJ Cruiser 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 FJ Cruiser?
We've catalogued 15 known faults for the Toyota FJ Cruiser, covering engine, suspension, and body & rust. All 15 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 FJ Cruiser?
Most single repairs on the Toyota FJ Cruiser fall between $450–$1,400 at NZ independent-workshop rates. Some of the 15 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 FJ Cruiser?
Yes. A Toyota FJ Cruiser 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.