P0008 on Pontiac: How to Diagnose & Fix
Engine Position System Performance - Bank 1
1 Pontiac model · 1 documented issue · 1 critical · $1,200-$2,500 repair
P0008 on Pontiac by model: symptoms, diagnosis and fix
The 2.4L Ecotec LE5 in 2007-2010 G6 (and shared Cobalt SS, Malibu, HHR, Saturn Aura/Ion, Solstice) develops timing chain stretch — a very well-documented engineering issue across Ecotec forums and independent shops. Root cause: GM's original Oil Life Monitor allowed intervals up to 12,000 miles, starving the chain. Note: while GM issued Special Coverage Adjustment 11340C covering timing chain stretch on the 3.6L LFX/LLT V6, the 2.4L Ecotec did NOT receive the same blanket warranty extension. Some owners obtained goodwill repairs through dealer-level escalation.
Common Symptoms
- cold start rattle
- misfire
- check engine light
- reduced power
How to Fix
Full timing chain kit replacement (chain, tensioner, guides) ~$1,200-$2,000. If you experience the issue under 100,000 miles, request a goodwill-assistance review at a GM/Chevy dealer (not all approved, but some are). Use dexos1 full-synthetic 5W-30 and stick to 5,000-mile intervals going forward.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Cloyes 9-4201SX primary timing-chain kit
2007-2010 Pontiac G6 2.4L LE5 only after vehicle-fitment confirmation.
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P0008 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0008 mean on a Pontiac?
P0008 stands for "Engine Position System Performance - Bank 1." P0008 means the engine computer detected that Bank 1 of the engine is timed incorrectly relative to where it should be — specifically, the relationship between the crankshaft and camshaft positions on that bank is off. The 'Engine Position System' refers to the components (timing chain/belt, sprockets, tensioners, and the variable valve timing actuators) that keep the camshafts synchronized with the crankshaft. When the computer commands a timing position but the sensors report the bank is out of the expected range, it sets this code. It generally signals a mechanical timing problem on Bank 1 that can affect performance and, if severe, risk internal engine damage. On Pontiac it is documented across 1 model: G6.
What are the most common causes of P0008?
The most common causes of P0008 are: Stretched or worn timing chain, Failed or worn timing chain guides or tensioner, Faulty camshaft position (VVT/VCT) actuator or solenoid, Low or dirty engine oil affecting timing actuator operation, Jumped or mistimed timing chain/belt after service, Faulty crankshaft or camshaft position sensor, Clogged oil control valve or oil passages. The specific cause varies by vehicle.
How much does it cost to fix P0008 on a Pontiac?
Published repair estimates on Pontiac range from $1,200 to $2,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0008 on a different make?
View P0008 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.