1990 Cadillac Eldorado Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Cadillac Eldorado
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
Our experts translate recalls into plain English
1990 Cadillac Eldorado ProblemsCar Won't Start and Security Light is On
Problems with 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 key and ignition lock cylinder should be replaced to correct this condition.
You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be completely flushed.
The spark plugs should be replaced every 30,000 miles and the spark plug boots should be checked for hot spots and cracks.
1990 Cadillac Eldorado QuestionsHow tp bypasd anti theft (1 answer)
1988 chip key
cause the lubricant to collect in such a way as to deteriorate the switch seals and result in a refrigerant slow leak? I have replaced the low pressure switch at least three times since purchase of a used 1990 Cadillac Eldorado with 29,000 miles on it. Present mileage is 113,650. Replaced the ...
there is pressure but no power to stop the car. The repair shop said the brake booster shorted out when the alt. went out. I only had the car running for 2 minutes tops when the alt went out. Is this possible and is the part really $2700.00?