Problem Description and Possible Solution
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.
Average mileage: 102,820 (68,000–189,000)
29 people reported this problem
P0011, P0014, P0021, P0024 codes
Traction control is off.. engine light is on.
Weekly issues with this vehicle.
Car started running poorly and finally will not run at all. The car will still start but has two reported error codes P0011, P0014, both related to cam shaft sensors.
Codes p0019,p0017,p0014,p0011. Engine has been taken apart and had new timing chains etc. and still have these codes. Still trying to find and correct issues. Engine runs rough , poor gas Mileage
Gmc acadia 2011 When i start the truck make rarely noise my mechanic is telling me I have to do timing chains because chains have stretch and it's a problem with all 3.6 engine but gmc don't want to admit it and oil consuming it eats one quart of oil for every 1000 miles import cars you change timing belt on 100000 miles and gmc can't even get to 70000 miles with metal chains this is why people are loosing trust on American cars