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 ProblemsSmog 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.
The high-pressure power steering lines are known to leak.
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.
1994 Cadillac DeVille QuestionsMy car will crank up and run but once I cut off it won't crank till about 30 min I got a 450 amp battery connected but my car use a 750amp is that the problem (1 answer)
I Done put a module,pick up core, spark plus and wires my fans won't come on unless I take my censor out