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2008 NISSAN QUEST

3.5L V6 VQ35DE•FWD•AUTOMATIC•gas•VQ35DE
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5-Year Cost of Ownership
$31,055 maintenance + known platform issues
~$6,211/yr · 520¢/mile equivalent · $6,191 maintenance + $5,914 expected platform issues
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3.5L V6
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3.3L V6 VG33E
Common Problems & Known Issues

The 2008 Nissan Quest with the VQ35DE V6 is a decent family hauler undermined by a catastrophic engine defect and transmission cooling failures. The transmission cooler issue can cascade into both transmission and engine damage if neglected.

Coolant-Contaminated Transmission Failure (SMOD - Strawberry Milkshake of Death)

Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Pink or milky transmission fluid on dipstick, Transmission slipping, delayed engagement, or erratic shifts, Coolant loss without external leaks, Overheating transmission or engine
Fix: The internal transmission oil cooler in the radiator fails, allowing coolant and ATF to mix. Requires radiator replacement, transmission flush or full rebuild (often rebuild once contamination occurs), external cooler installation to prevent recurrence. 8-16 hours labor depending on transmission damage severity.
Estimated cost: $2,500-$5,500

Catastrophic Engine Failure - Pre-Ignition / Piston Damage

Occasional · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Severe engine knock or rattle under acceleration, Loss of power, rough idle, Check engine light with misfire codes, Metal shavings in oil, dropped compression on one or more cylinders
Fix: The VQ35DE in this generation suffers from pre-ignition issues that can grenade pistons, score cylinder walls, and damage crankshafts. Catalytic converter substrate can also break apart and get sucked back into cylinders. Requires short block replacement or full engine rebuild with pistons, rings, bearings, often head gasket work. 18-26 hours labor.
Estimated cost: $4,500-$7,500

Collapsed Engine Mounts (Especially Front and Transmission Mount)

Common · medium severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunking when shifting from Park to Drive or Reverse, Excessive engine movement visible under hood during acceleration, Vibration through steering wheel and floorboards, Drivetrain noise during hard throttle
Fix: Hydraulic engine mounts deteriorate and collapse, allowing excessive drivetrain movement. Replace front mount and transmission mount as a pair. 2.5-3.5 hours labor for both.
Estimated cost: $450-$750

Fuel Pump and Fuel Filter Clogging

Occasional · medium severity
Typical onset: 90,000-140,000 mi
Symptoms: Hesitation or stumble during acceleration, Hard starting or extended cranking when hot, Loss of power on highway or under load, Check engine light with lean fuel codes
Fix: Fuel pump weakens or internal fuel filter (part of pump assembly) clogs, starving engine of fuel. Requires dropping fuel tank to access pump assembly. 2.5-3 hours labor.
Estimated cost: $600-$950

Power Sliding Door Failures

Common · low severity
Symptoms: Doors refuse to open or close electrically, Doors reverse mid-cycle or stop halfway, Grinding or clicking noise from door mechanism, Door warning lights or chimes stay on
Fix: Sliding door motors, cables, and rollers wear out or break. Diagnosis can be time-consuming as multiple components interact. Motor replacement 2-3 hours per side, cable replacement 3-4 hours. Many owners disable and use manually.
Estimated cost: $500-$1,200 per door

Brake Pedal Bushing Wear (Recalled)

Common · high severity
Typical onset: 50,000-100,000 mi
Symptoms: Clicking or clunking from brake pedal area, Brake pedal feels loose or has excessive play, Intermittent loss of brake assist or hard pedal
Fix: Pedal bracket bushing wears, allowing pedal to move laterally and potentially disengage from brake booster pushrod. NHTSA recall should cover this—check recall status before paying. 1-1.5 hours labor if not covered.
Estimated cost: $0 (recall) or $150-$300
Owner tips
  • Install an external transmission cooler immediately if not already present—bypass the internal radiator cooler entirely to prevent SMOD
  • Check transmission fluid color every oil change; any pink tint means immediate action required
  • Use top-tier fuel and consider periodic fuel system cleaning to reduce pre-ignition risk
  • Inspect engine mounts annually after 60k miles; replace proactively to avoid secondary damage
  • Verify brake pedal recall completion before purchase—serious safety issue
Skip it unless you can verify the SMOD fix was done right (external cooler installed), get a pre-purchase compression test, and price reflects high-risk ownership—too many expensive grenades waiting to happen.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
482 jobs across 17 categories
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years.
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