The Check Engine Light With Code: P0011, P0014, P0021, P0024, P0341, P0346, P0336, and/or P0391 on Cadillac STS

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.

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Average mileage: 94,724 (58,000–137,000)
Engine affected: 3.6L V6
5 model years affected: 2005, 2006, 2007, 2008, more2009
12 people reported this problem
4 people shared problem details
2007 Cadillac STS- 3.6L V686,836
codes P0014, P0024. To date no fix.
2008 Cadillac STS- 3.6L V6137,000
The code p0008 is coming up
just came on and we are working on it..
Check engine would come on and go off frequently. Took it back to the dealer and GM has them tearing down the engine to check the camshaft. Luckily it is under warranty
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A loose or worn gas cap could be cause the Check Engine Light to illuminate.

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