2007–2012 GMC Acadia: Check engine light with P0008 or P0017 (3.6L timing chain)
Likely causes, ranked
- Stretched timing chainsShop
- Long oil change intervals or low oilDIY
Real-owner fix counts will appear here as reports come in.
DIY or shop: See DIY or shop section
Parts to check
As an Amazon Associate I earn from qualifying purchases.
These are search links; confirm fitment for your exact engine and trim. Affiliate disclosure
Symptom: A check-engine light with P0008 or P0017, sometimes a rattle or rough running.
Likely causes
- Stretched chains. Acadia Forum owners report chain replacement after these codes. GM's bulletin lists chain kits for these engines.
- Oil changes. GM reprogrammed the oil life monitor because old oil sped up chain wear.
DIY or shop?
Shop.
Useful steps
- Read the codes.
- Keep oil full and fresh.
- Confirm stretch with a scan tool before replacing parts.
Vehicle focus: 2007–2012 GMC Acadia.
Safety / mechanic note
A jumped chain can wreck the engine. Verify with a mechanic or dealer.
Related trouble codes
Recalls & service bulletins
Technical service bulletins
- 12-06-01-009F GM information on 3.6L timing chain kits for P0008, P0009, P0016, P0017, P0018 and P0019, covering the Acadia among others. Details
- 11340C Special coverage for 10 years/120,000 miles on timing chain wear for 2007 and 2009 Acadia. Details
NHTSA complaints: 148 keyword-matched complaints for GMC ACADIA 2007–2012 (of 2,551 unique complaints queried, NHTSA complaints API by model year, queried 2026-10-15).
Always check your VIN for open recalls at nhtsa.gov/recalls.
Sources
What actually fixed it?
Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.