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

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.

Engine Overheating Due to Leaking Headgasket

Overheating of the engine may cause the cylinder head to expand, severely straining the head bolts and damaging the threads in the engine block. This commonly results in a blown head gasket. Our technicians tell us the engine block threads must be repaired before the cylinder head is reinstalled.

Stalling Due to Failed Crankshaft Position Sensor

The crankshaft position sensor may fail causing the engine to stall intermittently, the Check Engine Light may or may not illuminate.

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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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