1991 Cadillac DeVille Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Cadillac DeVille

1991 Cadillac DeVille Problems

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 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.

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1991 Cadillac DeVille Questions

Do I need to take just the glove box out or the entire dash? Is it time to get a manual or can I find sufficient How-tos online?

Sometimes i start car, starts ok next time totally dead dont even turn over is the air compressor compresset draining battery? Can this b removed or unhooked

When I turn car off u can still hear the air ride compressor still running then brand new battery dead???

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1991 Cadillac DeVille Recalls

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.

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1991 Cadillac DeVille Reviews

my car keeps turinnig off after like 3 20 min drives an will stay off for 40 min then turn on without a jump ..... help .... my ac blower wont turn off when car is off .... an the far for radiator keeps blowing an its getting hot alot now i replaced both lower an upwer hoes an keep flids inb there an oil good full synthetic help other then that its a strong car 123k miles 2nd tranny first engin...

Bought this car 4 years ago for commuting and its the best commuter car I've ever had. I travel 160 miles a day with it to and from work, gets in low 20's for mpg at around 70mph. Headliner needs replacing, typical GM issue and I've replaced a couple sensors and a muffler, not bad for a car nearing 200,000 miles

Have a '91 Sedan DeVille that I bought in 2009 from orig owner. Had 74K on it. Wanted a comfortable car for long trips. Beautiful pearl white w/ navy leather. Was kept covered in a garage... No dents, chips, scratches----looks like new. Replaced the a/c compressor---bearings wore out, replaced the brake master cyl & booster, did a tune-up---still had orig wires & plugs on it. Love the ride, lo...

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