1990 Cadillac Fleetwood Problems

RepairPal has identified the most common problems with the 1990 Cadillac Fleetwood as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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22
Known Problems

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

The engine control module (ECM) electrical grounds on the front of the engine block may have high resistance causing a rough running engine or stalling condition.

The fuel injectors may short out electrically causing a rough idle.

The alternator may fail causing the battery to go dead or the engine to stall while driving.

The EGR valve or control solenoid may fail causing the check engine (SES) light to illuminate.

The ABS master cylinder assembly may fail internally causing the ABS light to illuminate.

The ABS accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard).