Cadillac DeVille Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Cadillac DeVille

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Cadillac DeVille Problems

Car Won't Start and Security Light is On

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.

Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator

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.

Oil Leaks From Lower Engine Area

The engine may develop oil leaks from the lower crankcase portion of the engine block. Our technicians tell us that the engine must be removed from the vehicle to properly repair this oil leak.

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Cadillac DeVille Questions

I want to hook up my subs and amp but i think this car has some sort of amp but (1 answer)

Its not bose so how can i properly do that

Headlights wouldn't turn off. replaced switch, no change. Could it be the relay? (1 answer)

Where is the relay? What else should I check?

My car idles so rough , like it's receiving shock treatments. (2 answers)

It's two months now since the engine bay was washed on my 90' Cad. and it still idles and surges to much to drive safely. Why isn't there a mechanic that can figure out what electrical component got wet. Ten mechanics and none of them know anything !

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Cadillac DeVille Recalls

Ignition 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 Recalls 1995-1997 Models Due to Fuel Rail and Return Line Leaks

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 2002-2003 Vehicles Due to Fuel Tank Pressure Sensor Failure

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.

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Cadillac DeVille Reviews

I put a Cadillac converter on here but the car is acting like it don't want to moveI put a water pumpthermostat radiatorsome more stuff just cant think right now
think its a wonderful car,yes like any other mode of transportation it will require maintenance. I would say if one doesn't want to do repairs,buy new and trade early. These cars represent a time when this country made great products, the ride the comfort ,the extra horsepower when you need it all within your reach. Personally, I own two Devilles, and wouldn't trade them . I actually enjoy...
gas mi. 22 i,ve spent alot of money on up keep 176000 mi on it it runs great only had the car a month.

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