P0011 on Chevrolet
Intake Camshaft Position Timing - Over-Advanced (Bank 1)
P0011 on Chevrolet vehicles indicates intake camshaft position timing - over-advanced (bank 1). Au7o has documented this code across 2 Chevrolet models — most commonly on Silverado 1500, Tahoe. 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. Typical repair costs on Chevrolet range from $300 to $3,500, depending on the specific model and root cause.
Common Causes of P0011
- •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
P0011 on Chevrolet by Model
Chevrolet Silverado 1500(2 issues)
- 2.7L Turbomax (L3B) Cold-Start Rattle and Wastegate Actuator Wear2019-2024
The turbocharged 2.7L Turbomax four-cylinder develops a metallic rattle/knock on cold start-up, most pronounced in the first few seconds before oil pressure builds. The root cause is premature wear in the turbocharger wastegate linkage/actuator, which can also throw a turbo-underboost code. Owners also report VVT camshaft-actuator (CPAS) solenoid faults and engine-harness chafing on this engine. Because the L3B is direct-injection only (no port injection), intake-valve carbon buildup compounds the rough-idle/misfire complaints as miles accumulate.
- 5.3L L83 Stretched Timing Chain / Cam Phaser Wear Setting Crank-Cam Correlation Codes2014-2019
On the Gen V 5.3L L83 (and 6.2L L86) in the Silverado 1500, the timing chain can stretch and the VVT cam phasers/actuators can wear, causing the camshaft to drift out of correlation with the crankshaft beyond what the variable-valve-timing system can correct. This sets crank/cam correlation and VVT codes, a startup rattle (slack chain before oil pressure builds), rough idle, reduced power, and on higher-mileage trucks a risk of the chain jumping. AFM operation and extended oil-change intervals accelerate the wear. It is a more involved repair than a sensor because it requires removing the front timing cover.
Chevrolet Tahoe(1 issue)
- VVT Cam Phaser / Timing Chain Cold-Start Rattle (5.3L)2014-2020
Gen V 5.3L engines use variable valve timing (VVT) with a cam phaser and VVT solenoid. Sludge and wear cause the phaser to rattle and the timing chain to stretch, producing a cold-start 'marbles in a can' rattle that often precedes a check-engine light. It sets crank/cam correlation codes (P0008/P0016/P0017) or VVT performance codes (P0011). GM TSB PIP5921B also documents a rattle/tick from the intake cam actuator when its cover-plate screws back out. Ignored, a stretched chain can jump timing and cause severe internal damage.
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View P0011 across all makes →Frequently Asked Questions
What does P0011 mean on Chevrolet?▼
P0011 stands for "Intake Camshaft Position Timing - Over-Advanced (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 Chevrolet specifically, this code is documented across 2 models.
What causes P0011 on Chevrolet vehicles?▼
Common causes on Chevrolet: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0011 on a Chevrolet?▼
Repair costs on Chevrolet range from $300 to $3,500, depending on the specific model and root cause.
Which Chevrolet models have P0011 documented?▼
Au7o has documented P0011 on 2 Chevrolet models: Silverado 1500, Tahoe.