P0011 on GMC: How to Diagnose & Fix
Intake Camshaft Position Timing - Over-Advanced or System Performance (Bank 1)
2 GMC models · 2 documented issues · 1 critical · $1,000-$3,000 repair
P0011 on GMC by model: symptoms, diagnosis and fix
GM tells technicians that the camshaft position actuator solenoid valve may stick or bind, holding the valve timing retarded, which can cause an intermittent crank-no-start with code P0011 and/or P00C6 stored. GM says the engine may sound like it is cranking fast and fuel rail pressure may read low while cranking. 2014-2019 GMC Sierra with the 4.3L V6 (LV3), 5.3L V8 (L83) or 6.2L V8 (L86), per GM preliminary information PIP5130K.
How to Fix
Have a qualified GM technician diagnose the no-start. PIP5130K has the technician use the scan tool to cycle the intake camshaft position actuator solenoid 4 or 5 times and try to start the engine; if it still will not start, the technician energizes the solenoid directly while cranking to free it. This is GM preliminary information for technicians, not a recall or a promise of free repair.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
Sources for this issue (1)
The GM Ecotec 2.4L in the 2010-2014 Terrain has the same timing chain stretch and tensioner failure as the Equinox and Malibu. GM Special Coverage 12313 covers balance-chain stretch (worn chrome on the balance chain pins) on 2010-2011 models for 10 years/120,000 miles. The 2010-2011 models are worst affected. Piston ring wear on 2010-2013 models causes excessive oil burning (GM bulletin 13-06-01-003), which leads to low oil and accelerated timing chain wear. 2015+ models received revised internal components.
Common Symptoms
- Rattling noise on cold start
- Check engine light with P0016 or P0017
- Rough idle and misfires
- Excessive oil consumption (1 qt per 1000 miles)
- Loss of power and poor acceleration
- Engine stalling
How to Fix
Confirm chain stretch with cam/crank correlation data before repair. On 2010-2011 models, a stretched balance chain is repaired free under GM Special Coverage 12313 (10 years/120,000 miles). When pistons and rings are replaced under GM bulletin 13-06-01-003, 2010-2011 engines that lack the updated timing chain kit (12635447), balance chain and tensioner get them, and the timing and balance chain guides are inspected. Keep the oil level full, since low oil from consumption accelerates chain wear.
Sources for this issue (2)
P0011 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0011 mean on a GMC?
P0011 stands for "Intake Camshaft Position Timing - Over-Advanced or System Performance (Bank 1)." P0011 means the engine computer detected that the intake camshaft timing on Bank 1 is more advanced than it should be — the variable valve timing system is either over-advancing the cam or not responding correctly to commands. Modern engines use a camshaft actuator, controlled by an oil-fed solenoid, to vary valve timing for better power and efficiency. When the actual cam position stays more advanced than the computer commands (or won't move back), this code is set. It generally indicates a fault in the variable valve timing system and can cause rough idle, reduced performance, or poor fuel economy. On GMC it is documented across 2 models: Sierra 1500, Terrain.
What are the most common causes of P0011?
The most common causes of P0011 are: Stuck or faulty camshaft (VVT) oil control valve / solenoid, Low or dirty engine oil restricting actuator movement, Clogged oil control valve screen or oil passages, Faulty camshaft phaser / actuator stuck advanced, Wrong oil viscosity or overdue oil change, Wiring or connector fault to the VVT solenoid, Faulty camshaft position sensor. The specific cause varies by vehicle.
How much does it cost to fix P0011 on a GMC?
Published repair estimates on GMC range from $1,000 to $3,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.