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Resources for the Repair and Maintenance of your 1990 Cadillac Fleetwood

1990 Cadillac Fleetwood

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1990 Cadillac Fleetwood Problems

Miscellaneous -- Verified

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.

Maintenance -- Verified

Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.

Engine -- Verified

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The spark plugs should be replaced every 30,000 miles and the spark plug boots should be checked for hot spots and cracks.

Engine -- Verified

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.

Exhaust & Emissions -- Verified

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.

1990 Cadillac Fleetwood Questions and Answers

Al9955, 1990 Cadillac Fleetwood, Mineola, TX

This is actually a 1985 Cadillac. The ignition lock is jammed and now the key is broken off in it. How to get lock out and replace.

Visitor, 1990 Cadillac Fleetwood, Portage, PA

Heating system is blowing cold air, why?

javier31, 1990 Cadillac Fleetwood, Port Saint Lucie, FL

hi,i have a 90 cadillac brougham with a 5.7 liter and i think i have a vaccumm problem,i checked the egr vaccum hose that goes connected to it and has no vaccum,could it be the canister,and also i ...

Visitor, 1990 Cadillac Fleetwood, Waco, TX

when I back out into the daylight my dash goes very dim
and also when I durn on my head lights
how can i keep my dash lights bright

gary3287, 1990 Cadillac Fleetwood, Des Moines, IA

1986 Cadillac Fleetwood Brogham. Cannot get the tail light cover off and no way to get to tail light from trunk.

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