P0011 Chevrolet Silverado 1500
Intake Camshaft Position Timing Over-Advanced (Bank 1) · Powertrain Code · High
What is P0011?
The intake camshaft timing on bank 1 is more advanced than the ECM commanded. Usually caused by a stuck VVT solenoid, dirty engine oil, or timing chain stretch.
When the Chevrolet Silverado 1500 triggers code P0011 (intake camshaft position timing over-advanced (bank 1)), it typically points to an issue in the powertrain system. This is a high severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Chevrolet Silverado 1500.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Chevrolet Silverado 1500.
Common Causes on Chevrolet Silverado 1500
- Cam phaser worn and stuck in advanced position on 5.3L or 6.2L V8
- VVT solenoid stuck open allowing excessive oil flow to advance side
- Low oil pressure from clogged oil pickup tube or worn oil pump
- Dirty or degraded engine oil causing cam phaser to stick
- AFM system oil pressure fluctuations affecting cam phaser position
Symptoms
- Rough idle with noticeable engine vibration
- Poor fuel economy from incorrect valve timing
- Engine stalling at idle or low RPM
- Hard starting especially when engine is warm
- Rattling noise from engine timing area
- Check engine light illuminated
Notes for Chevrolet Silverado 1500
GM 5.3L/6.2L cam phaser wear is accelerated by AFM oil pressure cycling; often appears with P0014.