Nissan Pathfinder
3.5L naturally aspirated V6 with an unmistakable sound — a throaty, sonorous roar that Nissan tuned, according to Calsonic engineers, with Ferrari as a reference. Revs smoothly to 7,000 rpm and really comes alive above 5,000 rpm. Plastic timing chain guides are the well-known Achilles heel from 130,000 km. Oil consumption and synchro wear in the manual gearbox are worth monitoring.
264 hp family SUV with CVT
The VQ35 in the R52 delivers solid power, but the CVT is prone to issues. Comfortable, but not built for adventure.
Engine Weaknesses 10
Certain production batches (2006 models) have defective piston rings fitted. Consumption can reach 1.5–4.5 l/1,000 km. Nissan replaced complete engines under warranty in such cases.
Symptoms: Heavy blue exhaust smoke under acceleration, significant oil level drop after a few hundred km, oily exhaust smell
Sustained oil starvation from the piston ring issue can cause connecting rod bearing damage. Engine repair including cylinder head replacement costs around €4,000; a replacement engine is €2,500–3,000.
Symptoms: Metallic clattering and knocking from engine, severe power loss, oil pressure warning
The ceramic substrate of the OEM catalysts fractures from oil combustion and thermal shock. Loose fragments block the exhaust path, increase back-pressure and can ultimately cause piston seizure.
Symptoms: Loud rattling from under the car on acceleration, power loss, MIL with P0420/P0430, blue exhaust plume on cold start
The FS6R31A manual gearbox has single-cone synchroniser rings in 2nd and 3rd gear. From around 80,000 km, crunching or clonking noises appear, especially with a cold gearbox. Changing gearbox oil to 75W90 GL4 helps temporarily.
Symptoms: Hard crunching or dull clonk when selecting 2nd/3rd gear, especially cold. Nissan dealers refer to it as 'normal characteristics'.
The valve cover gaskets on both cylinder banks of the V6 become porous over time and allow oil to escape. An age-related issue that should be addressed consistently to avoid secondary damage.
Symptoms: Oily smell in engine bay, visible oil traces on valve cover, oil on spark plugs
The VQ35DE's multi-point injection system washes the valves in principle, but crankcase ventilation oil mist can still cause deposits. This applies especially on older high-mileage engines.
Symptoms: Slight roughness at idle at high mileage, occasional misfires
The VQ35DE camshaft sensors fail from around 100,000 km and cause stuttering, starting problems and fault codes. Only OEM sensors are reliable; aftermarket parts fail frequently.
Symptoms: Engine stutters, starting problems, engine warning light, P fault codes
The 5-wire wideband lambda sensors of the VQ35DE become sluggish from around 110,000 km. Fault codes P0136/P0156 appear, consumption increases noticeably. OEM sensors recommended.
Symptoms: Engine warning light, fault codes P0136/P0156, increased fuel consumption, slight power loss
The VQ35DE throttle bodies carbon up from around 80,000 km. After cleaning, the ECU must relearn idle, otherwise speed stays at 2,500 rpm. Relearn procedure via ignition cycle required.
Symptoms: High idle (2,500 rpm), rough running after cleaning without ECU reset
The standard PCV valve on the VQ35DE routes crankcase gases back into the intake. With elevated crankcase pressure or age-related wear, oil enters the combustion chamber and worsens oil consumption.
Symptoms: Elevated oil consumption without visible external leak, oil film on air filter or throttle body, faint blue smoke under acceleration
Vehicle Weaknesses 8
The RE0F09B Jatco CVT shudders violently when accelerating from a standstill or between 15–40 mph. TSB 15-015A addresses the issue. A class action covering 2015–2018 models extended the CVT warranty to 84 months/84,000 miles.
The RE0F09B CVT can fail completely, requiring a full replacement costing $3,500–$8,000. The 2013 model year logged 353+ powertrain complaints on CarComplaints.com. NHTSA Campaign 14V142000 and multiple class action settlements cover various model year ranges.
Metal debris from CVT belt wear accumulates in the valve body and disrupts pressure regulation. Code P17F0 signals early valve body damage. If the cooler is not flushed during CVT replacement, debris re-contaminates the new unit, triggering repeat failure.
The tempered glass panoramic sunroof on the R52 Pathfinder can shatter without any impact or warning. A class action (certified July 2022) alleges Nissan has known about the defect for years. Replacement costs up to $1,800 and Nissan typically declines to cover it.
The upper timing chain guide rail in the VQ35DE breaks at its head, causing the chain to clatter against the metal tensioner body. Nissan released revised guides and tensioners. The rattle appears at cold start, disappears after warm-up, but grows louder over time if ignored.
The brake light switch relay can stick open, keeping the brake lights permanently lit and disabling the brake-shift interlock so the transmission can be shifted out of Park without pressing the brake pedal. NHTSA recall 21V020000 covers 267,276 vehicles.
One or more of the six HVAC blend door actuators fail, causing incorrect cabin temperature on one or both sides. Replacement can require airbag removal and significant dashboard disassembly, making labor costs high.
The dashboard top covering develops visible cracks and hairline splits in high-heat climates. A known material quality issue common to this generation, not covered under warranty after the initial period.
