What causes P0011 on a GMC Terrain?

Common causes of P0011 on GMC Terrain: VVT solenoid stuck in advanced position on 1.5T or 2.0T Ecotec; Cam phaser worn on 2.4L Ecotec engine from timing chain stretch; Dirty oil blocking VVT solenoid oil passages; Low oil pressure from clogged oil screen.

P0011

P0011 GMC Terrain

Q: How much does it cost to fix P0011 on a GMC Terrain?

Fixes for P0011 on GMC Terrain include: Replace VVT solenoid and clean oil feed passages on Ecotec engine, Replace cam phaser and timing chain kit if wear is excessive on 2.4L, Perform engine oil flush and refill with correct weight oil, Clean oil pickup screen and verify oil pressure with gauge.

Intake Camshaft Position Timing Over-Advanced (Bank 1) · Powertrain Code · High · Repair: Moderate

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 GMC Terrain 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 GMC Terrain.

This repair is rated moderate, meaning some experience and specialty tools required.

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 GMC Terrain.

Common Causes on GMC Terrain

VVT solenoid stuck in advanced position on 1.5T or 2.0T Ecotec
Cam phaser worn on 2.4L Ecotec engine from timing chain stretch
Dirty oil blocking VVT solenoid oil passages
Low oil pressure from clogged oil screen

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

Recommended Fixes

Replace VVT solenoid and clean oil feed passages on Ecotec engine

Replace cam phaser and timing chain kit if wear is excessive on 2.4L

Perform engine oil flush and refill with correct weight oil

Clean oil pickup screen and verify oil pressure with gauge

Notes for GMC Terrain

Start with an oil change and VVT solenoid replacement before considering cam phaser work.

P0011 GMC Terrain

What is P0011?

Common Causes on GMC Terrain

Symptoms

Notes for GMC Terrain

Check GMC Terrain Specs