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: 96,334 (25,376–195,000)
25 people reported this problem
when I first purchased the car I had 79000 miles on it and after turning about 1000 or 2000 miles the check engine light kicked on an A code came up as the car was out of time by using the camshaft position sensor bank 1 I replace that since and the repair has not been successful.since that has not been fixed poor performance and response is sluggish on and during takeoff.
My '04 Cadillac began with my converters getting clogged up sent more then 1000 to get repaired when my transmission gave out. Had to replace that as well with more then 1000$. Replace spark plus gas filter air filter flywheel & now I have to replace my throttle body too! But my reduce engine power & service engine soon light comes on what can it be?
check engine light came on three times since 48000 miles, since I purchased this car,replaced sensor to gas tank for pressure, still came on, repaired wire to sensor, still came on, this time it said fuel leak, no fuel leak! they reset the light, a week later it came on again, it just so came on the same day I got a notice from On Star that my OnStar was not on. I chose not to use Onstar! Something Fishy here, Can Onstar make this check engine light come on When they want to. I give up! the engine check light is still on and the car runs fine.
went to for different shops for 4 different repairs all told me my cadi has 34 codes. some are history codes. had the cat converter replaced, water pump, muffler welded, and had the cat converter welded into place. and have head lights recommended = air bag message pop up every 20 min. what can done about this how are we suppose to renew tags this way
Check engine light, car not reaching temp, thermostat stuck in open position, replaced thermostat, corrected.