The 2010 Nissan Skyline (V36 chassis, sold as Infiniti G37 in North America) is a solid platform with legendary VQ engines, but suffers from well-documented timing chain and gallery gasket issues that can escalate into catastrophic failures if ignored.
Timing Chain System Failure (VQ35HR/VQ25HR)
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Cold-start rattle lasting 3-10 seconds (classic early warning), Check engine light with P0011/P0021 camshaft timing codes, Loss of power, rough idle, or complete no-start if chain jumps, Metallic grinding or whirring noise from timing cover area
Fix: Replace primary and secondary timing chains, tensioners, guides, and both cam phasers (VVT actuators). Requires front engine disassembly. 12-16 labor hours for complete job. CRITICAL: if chain jumped, inspect for valve-to-piston contact and possible head work.
Estimated cost: $2,800-4,500
Oil Gallery Gasket Leak (VQ35HR)
Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Oil consumption 1 qt per 1,000-2,000 miles with no external leaks, Blue smoke on startup or acceleration, Oil dripping from bell housing area (internal leak into timing cover), Low oil pressure warning if severely depleted
Fix: Replace oil gallery gaskets behind timing cover—essentially same labor as timing chain job since engine front must come apart. Most techs do timing components simultaneously. 14-18 hours if combined with timing work. Ignoring this leads to oil starvation and spun bearings.
Estimated cost: $3,200-5,000
Hydraulic Valve Lifter Collapse
Occasional · medium severity
Typical onset: 100,000-180,000 mi
Symptoms: Persistent ticking/tapping at idle that doesn't quiet after warmup, Noise from valve cover area, often one bank worse than other, Slight misfire or rough idle in extreme cases, Noise worsens with low oil or extended oil change intervals
Fix: Replace affected lifters (typically 2-6 fail, but smart to do all 24 if covers are off). Requires valve cover removal and shim bucket work. 6-9 hours per bank. Often done during timing chain service.
Estimated cost: $1,200-2,200
Transmission Oil Cooler Failure (5AT models)
Occasional · high severity
Typical onset: 90,000-140,000 mi
Symptoms: Transmission fluid in coolant (strawberry milkshake appearance in overflow tank), Coolant in transmission (slipping, erratic shifts, delayed engagement), Transmission overheating warnings, Rapid transmission failure if cross-contamination not caught early
Fix: Replace external transmission cooler and all contaminated fluids. Flush cooling system and transmission multiple times. If contamination reached trans internals, rebuild or replacement needed. Cooler replacement alone: 3-4 hours. Full trans rebuild adds 12-18 hours.
Estimated cost: $800-1,200 (cooler only), $3,500-5,500 (if trans damaged)
Transmission Mount Failure
Common · low severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunk when shifting from Park to Drive or Reverse, Vibration at idle in gear (especially with A/C on), Excessive driveline movement visible when accelerating/braking, Transmission shifter feels notchy or catches
Fix: Replace rear transmission mount (rubber deteriorates from heat). Straightforward job with trans support. 1.5-2 hours. OEM mounts last longer than aftermarket.
Estimated cost: $250-450
Fuel System Issues (High-Pressure Pump & Filter)
Occasional · medium severity
Typical onset: 120,000-160,000 mi
Symptoms: Hard starting, especially when hot, Hesitation or stumble under acceleration, Intermittent stalling or limp mode, P0087 fuel pressure too low code
Fix: In-tank fuel pump and filter assembly replacement. Tank must be dropped. High-pressure pump on engine also fails but less common. 4-5 hours for in-tank pump, 2-3 hours for engine-mounted HP pump.
Estimated cost: $800-1,400
Owner tips
Change oil every 3,500-4,000 miles with quality 5W-30 synthetic—extended intervals accelerate timing chain and gallery gasket wear on VQ engines
Listen for cold-start rattle and address timing components BEFORE codes appear—chain jumping can destroy an otherwise healthy engine
Inspect coolant and transmission fluid color at every oil change to catch cooler failure early
Budget $3,000-5,000 for timing chain preventive service around 100k miles if no prior work—it's not 'if' but 'when' on these engines
Fantastic driver's car with bulletproof transmission and chassis, but the VQ timing chain/gallery gasket combo is a ticking time bomb—only buy with full service records showing these addressed, or budget for them immediately.
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.
Fitment notes: JDM market V36 Skyline; battery located in engine bay
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Every control module on the 2007-2014 Nissan Skyline — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Audio Visual Control Unit / Navigation Unit (AV/NAV)1.5 hr R&Raftermarket tool +0.3 hr▸ programming details
📍 Center dash, integrated with touchscreen (if equipped)
🔧 CONSULT-III Plus or Autel
⚠️ Base audio or navigation system. VIN coding recommended. Radio code may be required.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2010 Nissan Skyline 2.5L V6 VQ25HR and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.