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.Google+
Car Problem Reports
Buick LaCrosse The Check Engine Light With Code: P0011, P0014, P0021, P0024, P0341, P0346, P0336, and/or P0391
Buick LaCrosse Problem
Engines Affected: 2.4L 4 Cylinder, 3.6L V6
Average Mileage: 24,417 mi (6,215 mi - 52,000 mi)
Car idles when at a light. Upon accelerating check engine light comes on and car loses all power. Had it towed to the dealer 2 times and dealer has been unable to replicate the problem. Upgraded software, recommended using different gasoline and changed the fuel pump after the first incident. Issue has not re-occurred "yet" but dealer recommended trading it in and getting a new one. Which is not an option since i would not want to buy another GM vehicle based on this experience.
Visitor, 2013 Buick LaCrosse, 3.6L V6, 6,215 mi
Engine light comes on. Camshaft sensor is being replaced. All the lights went out on the dashboard as I was driving down the highway.a large black moldy looking spot on the passenger rear floor under the floor mat.i am afraid to drive the car.
On two occasions the check engine light has come on suddenly...and remained on. On both occasions, the car was towed to the dealership who advised me that "sometimes computers have to be adjusted." There remains other troubling problems, which may or may not be attributed to this symptom, e.g. car has shut off completely when making hard left turns, car has surged unexpectedly when applying brakes, etc.
Engine stalls frequently