Cadillac DeVille Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Cadillac DeVille
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Cadillac DeVille ProblemsPowertrain Control Module may Develop Fault
This powertrain control module (PCM) may develop a fault with its electrical ground location at the front of the engine block near the starter motor.
The anti-lock brake system (ABS) control module may fail causing the ABS light to illuminate. Failed modules should be replaced to restore ABS operation.
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.
Cadillac DeVille QuestionsWhy does My 1991 Cadillac DeVille starts running rough at 43 miles per hour (1 answer)
I just had a new throttle positioning sensor and new EGR valve and new fuel pressure regulator and new catalytic converter and new fuel pump assembly and a new fuel filter put on my 91 Cadillac DeVille but as soon as it hits 43 miles per hour it starts to run rough and shake a bit it's got no...
Cadillac DeVille RecallsIgnition Lock Cylinder Concern
Excess weight on the key ring can cause the ignition switch to move out of the run position without warning, turning off the engine. This defect can also affect the safe operation of the airbag system. 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. Dealers will install two 13mm key rings and key insert into the vehicle's ignition keys to correct this concern.
GM has recalled 1995-1997 Cadillac Deville, Eldorado, Seville, and Oldsmobile Aurora vehicles because the fuel rail and fuel system return line may crack and leak fuel. In the presence of an ignition source, a fuel leak may result in a fire. Dealers will replace the fuel rail and return line.
GM recalls certain 2002-2003 Cadillac Devillle, Seville, Oldsmobile Aurora, and Pontiac Bonneville vehicles because the fuel tank pressure sensor may fail and cause a fuel leak. In the presence of an ignition source, a fuel leak may result in a fire. Dealers will replace the fuel tank pressure sensor.