Two problems related to other fuel system have been reported for the 2004 Cadillac Deville. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Cadillac Deville based on all problems reported for the 2004 Deville.
Tl-the contact owns a 2004 Cadillac Deville. The contact stated that he observed fuel leaking from the front of the vehicle without warning. The failure recurred several times. The vehicle was taken to a independent mechanic where it was diagnosed that the valve cover gasket failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 117,000. Ec.
Main computer failed while driving causing total loss of power. One pin was bad in the computer that controls the cars fuel, engine, etc. Replaced the defective computer costing over $1,000. Prior to the failure the check engine light came on many times. The computer did not store a code for this problem. This total loss of power is a costly safety issue.
| Other Fuel System problems | |
| Other Fuel System Hoses Lines/piping, And Fittings problems |