Nissan Patrol: common faults & what to check
Thinking about buying a used Nissan Patrol (1987–2016) in New Zealand? We've documented 48 known faults for this model spanning engine, body & rust, cooling, and suspension. 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.
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48
Critical
$800–$3,500
9
Which Nissan Patrol are you looking at?
Petrol
2013–nowY62Y625.6 V8 petrolPetrolSee faults & what to checkKickTyres illustration, not a photograph.Diesel
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Pick the engine above first: the Patrol came with 8, and without it the report has to show all of their faults. Pick the engine
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Nissan Patrol
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
Check service history for regular oil changes at or before 5,000 km intervals.
ZD30DDTi catastrophic engine failure — piston and connecting rod destruction
The 3.0L ZD30DDTi common-rail diesel fitted to GU Patrols is one of the most extensively documented catastrophic failure engines in the NZ/AU 4WD market. At higher revs under load (typically highway towing or steep hill climbing), the engine suffers from oil starvation to the number 3 or 4 big end bearing, leading to piston crown disintegration, connecting rod failure, and total engine destruction. Contributing factors include a marginal oil capacity, cracked pistons under detonation from stretched timing belt advancing injection timing, and an oil pressure system that cannot maintain adequate supply at high revs. Engines can fail without warning and throw rods through the block. Replacement engines are expensive and the issue recurs if root causes are not addressed.
What you would notice
Serious issue
Check intercooler hoses for boost leaks (soap test).
ZD30DDi Piston Land Cracking and Catastrophic Engine Failure
The ZD30DDi 3.0L common-rail diesel is notorious for cracking the piston crown land between the top two compression rings, typically triggered by over-boost from a failing variable-nozzle turbocharger or intercooler boost leak. The cracked piston fragment can enter the combustion chamber, destroying the liner, head, and connecting rod in a single event. This failure mode is so prevalent in NZ and Australia that it is colloquially called 'ZD30 self-destruction.' The factory boost ceiling of approximately 14 psi is the design limit; malfunctioning VNT turbos can spike well above this. Pre-2007 engines without the revised piston casting are most vulnerable.
What you would notice
Serious issue
Check for white or sweet-smelling exhaust smoke at idle and under load.
ZD30DDTi Head Gasket Failure and Piston Cracking
The ZD30DDTi engine has a documented design vulnerability in its cooling system: air pockets form readily in the coolant passages around the cylinder head, and the EGR valve accelerates carbon buildup that raises combustion temperatures. When the engine overheats — even briefly — the aluminium cylinder head distorts, blowing the head gasket and allowing combustion gases into the coolant circuit. In severe or repeated overheating events, the elevated in-cylinder temperatures and pressures cause the piston crown to crack or partially melt, resulting in catastrophic internal engine damage. This failure pattern is so well established that it is referenced in NRMA technical reports, multiple RACQ advisories, and thousands of documented workshop cases across Australia and New Zealand.
What you would notice
Serious issue
Ask the seller for the recall completion record or a dealer service invoice showing the recall work.
Y61 GU Patrol Takata passenger airbag inflator recall
Y61 (GU) Patrol wagons built from 2001 to 2016 and cab chassis built from 2006 to 2016 are part of Nissan's Takata airbag recall for the front passenger airbag. With age, heat and humidity the inflator propellant can degrade so that in a crash the metal housing ruptures and sprays fragments into the cabin. Nissan replaces the inflator free of charge. Recall lists cover cars sold new in Australia, so for an NZ-new or imported car ask a franchise dealer to check the VIN.
What you would notice
Serious issue
Check oil cap and dipstick for white emulsion.
TB45E petrol head gasket failure
The 4.5L TB45E inline six petrol engine used in GU Patrols shares the same head gasket vulnerability as the earlier TB42 in Y60 models. The alloy head over cast-iron block combination warps and fails after overheating events. The TB45E is a larger, heavier engine and overheating can occur from thermostat failure, radiator blockage, or water pump wear. Head gasket failure is well-documented in AU and NZ TB45E GU Patrols with unknown or poor cooling system maintenance histories.
What you would notice
Serious issue
Check oil filler cap and dipstick for white emulsion.
TB42 petrol head gasket failure
The 4.2L TB42 petrol engine is prone to head gasket failure, particularly when coolant maintenance has been neglected or the engine has overheated. The cast-iron block and alloy head combination is susceptible to warping after overheating events. Once the gasket fails, combustion gases enter the coolant or oil, accelerating engine damage. A common pattern in NZ/AU Y60 Patrols with high mileage or unknown service history.
What you would notice
See all 48 documented issues
Depends on which engine this Nissan Patrol has — 48
Engine, transmission & cooling
01ZD30 3.0 diesel 'grenade' — melted pistons from overboost and overfuelling
Can't confirm for this car02ZD30DDTi catastrophic engine failure — piston and connecting rod destruction
Can't confirm for this car03ZD30DDi Piston Land Cracking and Catastrophic Engine Failure
Can't confirm for this car04ZD30DDTi Head Gasket Failure and Piston Cracking
Can't confirm for this car05RD28T Head Gasket Failure Between Cylinders
Can't confirm for this car06TB42E Timing Chain Tensioner Failure
Can't confirm for this car07TB45E petrol head gasket failure
Can't confirm for this car08TB42 petrol head gasket failure
Can't confirm for this car09ZD30DDi EGR Cooler Internal Cracking and Coolant Contamination
Can't confirm for this car10ZD30DDTi Marginal Cooling System Capacity
Can't confirm for this car11VK56VD VVEL Timing Chain Stretch & Rattle
Can't confirm for this car127-speed auto: 'sealed-for-life' fluid myth and torque converter wear when towing (Y62)
Can't confirm for this car
Can't confirm for this car
Nissan marketed the Y62's 7-speed automatic as sealed-for-life, but Australian Patrol specialists strongly disagree — vehicles used for towing or hot-climate touring need fluid changes as often as every 30,000-50,000 km, and the torque converter is the known weak point under prolonged heavy towing. Symptoms include shift delays under load, shudder, and gear ratio fault codes (P0729 for 6th gear is a known one, often speed-sensor related). Most Y62s in NZ tow something big, so service history matters more than the odometer.
Example of the part — not this vehicleA torque converter, sectioned. The lock-up clutch inside is what shudders.
Symptoms to notice
What to check
Ask the seller
13TB48DE Rear Cylinder Head Gasket Failure
Can't confirm for this car
Can't confirm for this car
The TB48DE inline-six has a known weak point at the rear pair of cylinders (cylinders 5 and 6) where the head gasket is most susceptible to failure. The failure mode is typically a coolant-to-combustion breach rather than an oil leak, driven by localised thermal stress at the rear of the long cylinder block where coolant flow is weakest. Symptoms closely mimic those of a failing radiator or thermostat, which can delay correct diagnosis. Overheating events — even brief ones from a faulty thermostat — accelerate the gasket failure. Detection via a combustion gas test of the coolant reservoir is the most reliable non-invasive diagnostic.
Example of the part — not this vehicleA used multi-layer head gasket. Discolouration between a cylinder and a water gallery is the tell.
Symptoms to notice
What to check
Ask the seller
14RE7R01B Torque Converter Clutch Shudder
Can't confirm for this car15TB48DE Timing Chain Stretch and Tensioner Rattle
Can't confirm for this car16ZD30DDTi turbo oil feed banjo bolt blockage causing turbo failure
Can't confirm for this car17VK56VD VVEL Actuator Motor Failure
Can't confirm for this car
Can't confirm for this car
The VVEL system on the VK56VD uses electric DC actuator motors on each cylinder bank to continuously vary valve lift and duration. These actuator motors are prone to internal brush wear and bearing failure, typically presenting between 80,000 and 150,000 km. When a motor fails the ECU detects the fault, stores a P000A or P000B code, and restricts the engine to a fixed low-lift limp mode resulting in a dramatic loss of power. Replacement requires removal of the intake manifold and valve covers, making labour costs significant.
Symptoms to notice
What to check
Ask the seller
18TD42 Bosch VE Injection Pump Wear and Timing Drift
Can't confirm for this car19Transfer Case Front Input Bearing and Oil Seal Failure
Can't confirm for this car20ZD30DDTi Turbocharger Bearing Failure from Oil Starvation
Can't confirm for this car21Transfer Case Drive Chain Wear and Slipping
Can't confirm for this car
Can't confirm for this car
The Patrol Y61 uses a Borg Warner transfer case with an internal drive chain to distribute torque between the front and rear outputs. The chain is lubricated by the transfer case oil, and over high mileage — especially where oil changes have been neglected or the vehicle has been used heavily in 4WD — the chain links elongate through wear and the sprocket teeth become rounded. A worn chain produces vibration and shudder felt through the driveline in 4WD, and in advanced cases the chain can skip over the sprockets, causing intermittent loss of drive to either axle. The failure is accelerated by off-road use that demands sustained 4WD engagement.
Symptoms to notice
What to check
Ask the seller
22VK56VD HPFP Pulsation Dampener Diaphragm Rupture
Can't confirm for this car
Can't confirm for this car
The VK56VD direct-injection engine uses a high-pressure fuel pump with an integrated pulsation dampener whose flexible metal or rubber diaphragm absorbs cyclic pressure pulses generated by the cam-driven pump. This diaphragm can rupture or fatigue over time, causing uncontrolled fuel pressure oscillations in the high-pressure rail, rough idle, hesitation under load, and erratic fuel delivery. In severe cases of diaphragm rupture, fuel vapour can enter the engine bay. Symptoms closely mimic other fuelling faults and definitive diagnosis requires monitoring live high-pressure fuel rail data for oscillation signatures.
Symptoms to notice
What to check
Ask the seller
23Transfer Case Hi/Lo Engagement Fork Wear
Can't confirm for this car
Can't confirm for this car
The GU Patrol's part-time transfer case uses a mechanical shift fork to move the range sleeve between high and low range. The fork is manufactured from an aluminium alloy and the engagement pads wear progressively, especially on vehicles used frequently off-road or where the shift is made at speed rather than at a dead stop. Worn fork pads result in incomplete engagement of low range, causing the transfer case to pop out of 4Lo under load — the classic symptom is the vehicle unexpectedly returning to neutral under a steep hill-climb load. In advanced cases the fork can fracture, requiring full transfer case disassembly.
Symptoms to notice
What to check
Ask the seller
24ZD30DDTi EGR Valve and Inlet Manifold Carbon Blockage
Can't confirm for this car25ZD30DDi Injector O-Ring Failure Causing Diesel-in-Oil Contamination
Can't confirm for this car26ZD30DDTi Intercooler Boost Pipe Cracking and Boost Leak
Can't confirm for this car27TD42 Thermostat Housing Crack and Coolant Loss
Can't confirm for this car28VK56 5.6 V8 extreme fuel consumption and limited touring range (Y62)
Can't confirm for this car
Can't confirm for this car
Not a defect but the defining ownership cost: the 5.6-litre petrol V8 routinely returns 14-18 L/100km around town and well over 20 L/100km towing, and forum threads are full of owners shocked by real-world figures versus the official claim. With the 140-litre tank that still limits remote touring range, which is why long-range tanks and careful trip planning are common. Budget realistically — at NZ petrol prices a towing Y62 can cost more in fuel than its finance payment. The engine itself is robust when serviced, making this a wallet problem rather than a reliability one.
Symptoms to notice
What to check
Ask the seller
29VK56VD MAP Sensor Failure & Rough Idle
Can't confirm for this car
Can't confirm for this car
The intake manifold absolute pressure sensor on the VK56VD 5.6L V8 is susceptible to contamination from oil vapour and carbon deposits drawn through the PCV system. Sensor drift or complete failure causes the ECU to receive incorrect manifold pressure data, leading to an incorrect fuel calculation, rough idle, erratic fuel trims, hesitation on light throttle, and an illuminated check engine light. The sensor itself is a relatively inexpensive component, but access on the VK56VD may require partial intake disassembly, adding to labour cost.
Symptoms to notice
What to check
Ask the seller
Electrical
01Transfer case encoder motor failure — stuck in Hi or Lo range
Can't confirm for this car
Can't confirm for this car
The Y62 Patrol uses an electronic encoder motor to shift the transfer case between 2H, 4H, and 4L. The encoder motor and its position sensor are prone to failure, causing the transfer case to stick in its current range or refuse to shift. The vehicle may remain stuck in 4WD (causing drivetrain binding on-road) or in 4Lo (preventing road driving). This is a documented fault on Y62 Patrols in NZ/AU from around 80,000 km onward, with replacement encoder motors required.
Symptoms to notice
What to check
Ask the seller
Body, brakes, suspension & interior
01Rear leaf spring mount and chassis rail corrosion
Can't confirm for this car02Rear Leaf Spring Eye Cracking and Bushing Collapse
Can't confirm for this car
Can't confirm for this car
The GU Patrol's rear suspension uses a multi-leaf spring pack with a rolled steel eye at the front mounting point. On high-mileage or heavily loaded vehicles — particularly those used for towing or carrying canopies and drawers — the spring eye develops fatigue cracks at the inner radius of the rolled eye. In parallel, the polyurethane or rubber bush inside the eye collapses and allows metal-to-metal contact, accelerating crack propagation. A cracked spring eye can fail completely and allow the axle to shift rearward under braking, causing a sudden and dangerous loss of directional control. Vehicles with aftermarket lift packs fitted at increased spring rate are at elevated risk.
Symptoms to notice
What to check
Ask the seller
03Y61 GU Patrol Takata passenger airbag inflator recall
Can't confirm for this car
Can't confirm for this car
Y61 (GU) Patrol wagons built from 2001 to 2016 and cab chassis built from 2006 to 2016 are part of Nissan's Takata airbag recall for the front passenger airbag. With age, heat and humidity the inflator propellant can degrade so that in a crash the metal housing ruptures and sprays fragments into the cabin. Nissan replaces the inflator free of charge. Recall lists cover cars sold new in Australia, so for an NZ-new or imported car ask a franchise dealer to check the VIN.
Symptoms to notice
What to check
Ask the seller
04Rust in gutters, sills, rear quarters and chassis (Y61)
Can't confirm for this car05Hydraulic Body Motion Control (HBMC) leaks and failures (Y62)
Can't confirm for this car
Can't confirm for this car
Higher-spec Y62s (Ti-L and similar) use Nissan's Hydraulic Body Motion Control — interlinked hydraulic suspension instead of conventional sway bars. It rides beautifully when healthy, but the system's rams, lines and accumulators can leak or lose pressure with age and off-road use, producing a leaning, wallowing truck and warning messages. Parts are dealer-priced and repairs are specialist work; some owners in AU/NZ convert to conventional springs and sway bars instead. Check which suspension the specific car has before valuing it.
Symptoms to notice
What to check
Ask the seller
06Chassis Rail and Rear Crossmember Corrosion
Can't confirm for this car07Rear Air Suspension Airbag & Compressor Failure
Can't confirm for this car08Rear Leaf Spring Sag and U-Bolt Fatigue
Can't confirm for this car09Brake booster faults and rapid consumable wear (Y62)
Can't confirm for this car
Can't confirm for this car
The Y62 weighs around 2.8 tonnes and is famously hard on brakes: pads and rotors wear quickly, and owners report warped rotors and shudder well before 40,000 km, especially on cars that tow. Separately, there are documented cases of brake booster assembly failures causing a sudden hard pedal with little stopping power, sometimes with ABS/traction lights — dealers have replaced boosters outright. Budget for consumables regardless, and treat any pedal inconsistency as a deal-breaker until diagnosed.
Symptoms to notice
What to check
Ask the seller
10Front prop shaft and Birfield CV boot failure
Can't confirm for this car11Front wheel bearing failure — premature wear under vehicle weight
Can't confirm for this car
Can't confirm for this car
The Y62 Patrol is a very heavy vehicle (over 2,700 kg GVM) and the front wheel bearings carry significant load, particularly on vehicles used for towing or frequent off-road work. Front wheel bearing failure is documented from 80,000–150,000 km on higher-use examples. The hub-integrated bearing unit requires pressing out and replacement rather than simple repacking. Bearing failure left unaddressed can progress to wheel wobble and, in severe cases, wheel separation risk.
Symptoms to notice
What to check
Ask the seller
12Front-end 'death wobble' — kingpin preload and worn steering components (Y61)
Can't confirm for this car
Can't confirm for this car
Live-axle Y61 Patrols, particularly lifted or hard-worked examples, can develop a violent front-end shimmy at open-road speed after hitting a bump — the infamous death wobble. Forum consensus and workshop experience point to kingpin (swivel hub) preload as the first thing to check, followed by panhard rod bushes, tie rod ends and wheel balance. It is fixable and usually not hugely expensive, but a truck that wobbles has often been worn in several places at once, and big aftermarket tyres make it worse.
Symptoms to notice
What to check
Ask the seller
13Front Axle Universal Joint Wear and Vibration
Can't confirm for this car14Brake Caliper Guide Pin Seizure
Can't confirm for this car
Can't confirm for this car
The front and rear brake calipers on the Y61 Patrol use sliding guide pins to allow the caliper body to float as the brake pads wear, ensuring even pad contact across the rotor face. The guide pin rubber dust boots deteriorate with age and road exposure, allowing moisture and road salt to enter the pin bore. The steel guide pins then corrode inside their aluminium carriers, seizing in place. A seized guide pin prevents the caliper from sliding freely, so only the piston-side pad contacts the rotor effectively, causing rapid and uneven pad wear, rotor scoring, and a vehicle that pulls to one side under braking. In severe cases the seized caliper drags permanently, generating heat that can boil brake fluid and cause brake fade.
Symptoms to notice
What to check
Ask the seller
Fluid leaks
01Front Axle Birfield Joint Failure and Axle Seal Leaks
Can't confirm for this car02TD42 injection pump seal and governor seal oil leak
Can't confirm for this car
Can't confirm for this car
The Bosch inline injection pump fitted to the TD42 4.2L diesel develops leaks at the governor cover seal and shaft seals with age and heat cycling. Diesel fuel or engine oil weeps from the pump body, contaminating the engine bay and creating a fire risk near hot exhaust components. Very common on Y60s over 200,000 km. Reseal kits are available but labour-intensive.
Symptoms to notice
What to check
Ask the seller
03RD28T injector pump and front seal oil/fuel leak
Can't confirm for this car
Can't confirm for this car
The 2.8L RD28T turbo diesel injection pump shaft seal and front cover gasket are known to weep fuel and oil with age. The pump is mechanically driven and the seal wears over high mileage. Fuel contamination of engine oil is a secondary risk if shaft seals fail fully. Less catastrophically dangerous than ZD30 issues but a common finding on higher-mileage RD28T GU Patrols imported into NZ as JDM units.
A common-rail diesel injector. Contamination damages the nozzle at the tip.
Symptoms to notice
What to check
Ask the seller
04Front Differential Pinion Seal Leak
Can't confirm for this car
Can't confirm for this car
The front differential pinion shaft seal on the GU Patrol's Dana 30/Patrol front axle is a high-wear item. The pinion flange rotates at driveshaft speed and the rubber lip seal degrades from heat and UV exposure, typically beginning to seep between 80,000 and 150,000 km. The leak is progressive: initially a light film of gear oil on the front of the diff casing, eventually building to active dripping if ignored. Running the differential with low oil from a leaking pinion seal causes pinion and crown wheel bearing wear and ultimately differential failure. The seal is inexpensive but requires correct flange nut preload to be re-set on reassembly.
Symptoms to notice
What to check
Ask the seller
Nissan Patrol faults in detail
What these repairs cost on other cars
Some of the Nissan Patrol’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.
Other Nissan models
Nissan Patrol buyer questions
Is the Nissan Patrol reliable?
Like any used car, it depends on the specific example and its service history. Across the 48 documented faults for the Nissan Patrol, the recurring problem areas are engine, body & rust, and cooling. A Nissan Patrol 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 Nissan Patrol?
We've catalogued 48 known faults for the Nissan Patrol, covering engine, body & rust, and cooling. All 48 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 Nissan Patrol?
Most single repairs on the Nissan Patrol fall between $800–$3,500 at NZ independent-workshop rates. Some of the 48 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 Nissan Patrol?
Yes. A Nissan Patrol 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.