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.
Resources for the Repair and Maintenance of your 1993 Cadillac DeVille
1993 Cadillac DeVille
1993 Cadillac DeVille Problems
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.
The trunk pull down switch may fail causing the trunk lid not to close completely. Our technicians tell us that the failed switch can be replaced without changing the complete pull down motor assembly.
The electronic level ride system may not work properly; this may result in the rear of the vehicle riding too high or too low. Our technicians tell us that a height sensor or exhaust valve failure are common issues with this system. Proper diagnoses will be necessary to confirm the exact fault.
Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.
1993 Cadillac DeVille Recalls (Recent)
RepairPal Expert Overview:
Cadillac has recalled 1991-1993 Cadillac DeVille and Fleetwood vehicles because the upper transaxle cooler line may leak. In the presence of an ignition source, a fuel leak in the engine compartment may result in a fire. Dealers will replace the upper transaxle cooler line.
1993 Cadillac DeVille Questions and Answers
my radio doesn't come..how do i check the fuse box for this problem?what is the best battery for this car?
my air conditioner and heater have stopped working and it makes a loud noise when they are turned on and when you first start the car can you help me diagnose this problem
what do you do when you dont have the ignition key with the chip and the theft system will not disengage. how many restance valus are there.
my 93 deville has gear shift problems it wont go into park so as to make the doors unlock or start the car I have to start it in neutral and its really loose sometimes I have to find the gear I wan...
1993 Cadillac DeVille Reviews
Good service out of the vehicle for almost 175,000 miles now. Power steering hoses leaked a couple times, but other than that a pretty decent car. handling and ride quality are better than most US made cars of that time period, but not up to the standards of luxury imports from the mid 90s.