P0011: Intake Camshaft Position Timing Over-Advanced (Bank 1)
Can you still drive? Use caution. If the engine is stalling or running very rough, avoid driving. Check oil level immediately as low oil is the most common cause.
What Does P0011 Mean?
Code P0011 indicates that the intake camshaft on bank 1 is more advanced than the ECM has commanded. This means the camshaft timing has shifted beyond the expected position, which can occur due to oil flow issues, a stuck actuator, or timing chain problems. Advanced timing can cause rough idle and poor low-speed performance.
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Browse OBD-II Scanners on AmazonCommon Causes
- Low engine oil level or pressure
- Dirty or sludgy engine oil
- Stuck VVT actuator
- Worn timing chain
- Clogged oil passages to actuator
Symptoms
- Check engine light on
- Rough idle especially when warm
- Stalling at low RPM
- Poor low-speed performance
- Hard starting
Diagnostic Steps
- 1Check engine oil level and condition immediately
- 2Read VVT actuator position data with scan tool
- 3Test VVT solenoid operation
- 4Check oil pressure with mechanical gauge
- 5Inspect timing chain for stretch
- 6Check for sludge in oil passages
- 7Listen for timing chain rattle
Recommended Parts & Tools
Estimated Repair Cost
| Type | Estimated Cost |
|---|---|
| Total Repair Cost Range | $50 - $2000 |
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Frequently Asked Questions
Can an oil change fix P0011?
Yes, in many cases a fresh oil change with the correct viscosity oil resolves P0011, especially if the oil was old and sludgy.
Is P0011 related to the timing chain?
It can be. A stretched timing chain alters camshaft timing and can trigger P0011. Listen for a rattling noise from the timing chain area.
Community Fix Reports
Community reports are user-submitted and not verified by Auto AI Buddy. Results may vary.
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