p0011
Moderate
GMC · Trucks
Cam Position Timing Over-Advanced Bank 1
Quick Answer
Error code P0011 on your GMC Trucks means: Cam Position Timing Over-Advanced Bank 1. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Perform oil change with quality synthetic oil
2
Check timing chain condition and tension
3
Inspect oil control valve operation
4
Test variable valve timing solenoid
5
May require timing adjustment or component replacement
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Premium synthetic engine oil
Oil filter
Timing chain if needed
Oil control valve
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