Vehicles with certain V6 engines may illuminate the Check Engine Light one or more of the following codes: P0011, P0014, P0021, P0024, P0341, P0346, P0336, or P0391. Our technicians tell us that some vehicles may require a powertrain control module (PCM) software update to correct this issue. Other vehicles may have excess camshaft end play on one or both cylinder heads which will need to be corrected using special procedures outlined by GM.
The Check Engine Light With Code: P0011, P0014, P0021, P0024, P0341, P0346, P0336, and/or P0391 on GMC Acadia
Average mileage: 103,500 (77,500–150,000)
10 people reported this problem
4 people shared problem details
2008 GMC Acadia150,000Visitor
P0011, P0014, P0021, P0024 codes Traction control is off.. engine light is on. Weekly issues with this vehicle.
2008 GMC Acadia77,500Visitor
check engine light stays on and reduce engine power light comes on car stops , then wait a while then the engine light stays on but then the reduce power light goes off the car become drivable
2007 GMC Acadia78,000Visitor
This arcadia is so problematic is crazy.
2008 GMC Acadia107,000Visitor
Engine light and p0011 code
The check engine light comes on for a day or so then goes off. They gave me that code when hook...
Check engine light was on. Mechanic replaced 6 spark plugs, ignition coil, gasket. Check engine...
It acts like a dirty or clogged fuel filter or a slip in the tranny. The check engine light is...