2004 Cadillac CTS Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Cadillac CTS
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2004 Cadillac CTS ProblemsFront and Rear Light Bulbs may Fail Prematurely
The front and rear light bulbs are prone to premature failure. Our technicians tell us that the front bulbs can be very difficult to replace.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
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.
2004 Cadillac CTS QuestionsHaven't touched the coils...still sputters (1 answer)
Car is still sputtering. Recently found a crack in the valve cover which is made of plastic. Tried to patch it. Did a smoke test but didn't see a leak anywhere. What could this be? Still no warning or engine light
I changed the spark plugs a few weeks ago along with the fuel injector sensor because the gas cap warning came on/engine light. There's no engine light or warning now but my car sputters horribly in idle and reverse please help!
When I turn the key back there is absolutely no power of any sort.
2004 Cadillac CTS RecallsFuel Pump Failure And Leakage
The engine may stall and fuel may leak due to overheating of the electrical terminals in the fuel pump module, resulting in the melting of the flange material. Dealers will replace the fuel module and fuel tank jumper wiring harness free of charge to resolve the concern.
The weight on the key ring and/or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine and increasing the risk of a crash. In the event of a crash, if the key is not in the run position, the air bags may not deploy as expected. Dealers will provide two replacement key rings, and vehicles with slotted keys will receive key inserts to correct this concern. Note: Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring.