1994 Cadillac DeVille Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1994 Cadillac DeVille

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1994 Cadillac DeVille Problems

Smog Check Failure Due to Excessive Carbon Buildup

Excessive carbon build up in the engine combustion chambers may be the cause of a smog check failure due to excess NOx emissions. A "top engine" decoarbonization cleaning procedure will commonly correct this concern.

High Pressure Power Steering Hose Can Leak Fluid

The high-pressure power steering lines are known to leak.

Car Won't Start Because of Anti-Theft System That Uses Raised-Chip Key

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.

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1994 Cadillac DeVille Reviews

Purchased quite used in December of 2013. This Fleetwood had 84,000 miles after twenty years! The ride cannot be beat. The mileage is excellent (24MPG) and the power (160 HP) is phenominal. I said many years ago that I'd not ever drive an ugly car. This is the car of my dreams. When something on it needs attention, I don't mind putting the money into it....it's worth it!
I was bequeathed my second lac from my mom in 1999 which she bought new in 1995, it is now 2011 and it still looks amazing, having a lil trouble with the tranny, which is being fixed, and just serviced the top of the motor, new injectors a thorough throttle body cleaning down to the heads, removed center head and replaced valve covers and all hoses. Hey its been 18 plus years of the good life...
1994 deville or DEVIL-le.Here is a brief summary of the problems I have or had with mine. Fuel filler neck leaks onto hot muffler. Fuel door sticks closed. Abs sensor wire on front passenger side breaks easily and costs over $100 for 1 wire!Brake lines rust and fail very easily. Cheap plastic radiator causes transmission oil cooler rupture causing transmission to burn up.Egr valve sticks open o...

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