GMC Error Code P0008: How to Fix It

Q: Can I drive with GMC error code P0008?

You should not drive with P0008 as it indicates timing chain problems that can cause sudden engine failure. If you must drive, keep speeds low and distances short while heading directly to a repair facility.

Q: What causes GMC P0008 error code?

P0008 is typically caused by stretched timing chains, worn timing chain tensioners, faulty cam/crank position sensors, low engine oil, or damaged timing chain guides. High mileage engines are most susceptible.

Q: How much does it cost to fix P0008 on a GMC?

Timing chain replacement typically costs $1,500-$4,000 depending on the GMC model and extent of damage. Sensor replacement alone costs $200-$400 if that's the only issue.

Q: Will P0008 damage my GMC engine?

Yes, continuing to drive with P0008 can cause catastrophic engine damage including bent valves, damaged pistons, or complete engine failure if the timing chain breaks or jumps timing.

Q: How do I prevent GMC P0008 error code?

Prevent P0008 by maintaining regular oil changes with proper grade oil, replacing timing chains at recommended intervals (typically 80,000-120,000 miles), and addressing any timing chain noise immediately.

Abstract

GMC error code P0008 indicates an Engine Position System Performance issue on Bank 1, typically caused by timing chain stretch, worn timing chain tensioners, or faulty cam/crank position sensors. This is a serious engine problem that can cause poor performance, rough idling, and potential engine damage if left unrepaired.