1991 Cadillac DeVille Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Cadillac DeVille
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1991 Cadillac DeVille ProblemsHeating and AC Temperature and Air Delivery Mode Door Actuators May Fail
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.
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.
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.
1991 Cadillac DeVille QuestionsCan bad crank sensor make the car keep falling dead in route (1 answer)
Car keeps loosing power after cooling off it starts again only to repeat itself It does this when I am driving on the freeway
1991 Cadillac DeVille RecallsCadillac Recalls 1991-1993 Models Due to Transmission Cooler Line Leak
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.