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 ProblemsThe Check Engine Light With Code: P0011, P0014, P0021, P0024, P0341, P0346, P0336, and/or P0391
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.
The rear axle pinion seal may leak causing fluid loss and possible internal rear end damage. Replacing the faulty seal will commonly correct this concern. Some 2005-2007 models have been recalled for this issue.
On the 2003's there is a plastic panel that covers the backup lights...it's about 1'X 3'...I guess it's common for these to just blow off. We just purchased the 03 CTS with only 41000 miles and had driven it for about 2 weeks when we noticed the panel was gone,exposing the backup lights. We choose to fix it right instead of trying to find a replacement at the salvage yard (since it seems to be design flaw because they about non exsistant). S...
2004 Cadillac CTS QuestionsWhat does it mean if my car does not crank and the key is stuck in the ignition? (2 answers)
When I turn the key back there is absolutely no power of any sort.
My mech said ECM might need replacing car runs fine but I feel it just needs Trans Fill up.
I changed the brake light switch, bulbs, fuses and the brake light connectors. after changing all the it is still burning the fuses out. there is something in the wiring that causing it to burn out the fuses. I need some advice on what to do next
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.