This 1987 Cadillac Eldorado factory service and repair manual is built around this specific model year and trim, giving you the torque values, clearances, and diagnostic steps Cadillac actually published for the Eldorado rather than a generic GM-era approximation.
Engines covered
- 4.1L V8 (250 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 2-door coupe
Trims covered
- Base
- Biarritz
Known issues on the 1987 Eldorado. Two recalls are on federal record for this model year. The first covers replacement fuel filters supplied for the fuel system: a connector not built to specification can keep the O-ring from seating correctly on the fuel line, which can produce an inadequate seal at the connection, a fuel leak, and, near an ignition source, a fire. The second covers the headlight switch: with the Twilight Sentinel system on, faulty electrical contacts in the potentiometer can create an intermittent circuit that cuts the headlights and instrument panel lights without warning, reducing driver visibility. Owners have filed 7 complaints for the year. The factory diagnostic and repair procedures behind each of those systems are here.
From tracing a Twilight Sentinel fault to inspecting a fuel filter connection, it keeps you on the OEM procedure and the correct specification for your specific 1987 Eldorado.
THE TWILIGHT SENTINEL POTENTIOMETER (THUMBWHEEL CONTROL) MIGHT HAVE BEEN MANUFACTURED WITH ELECTRICAL CONTACTS WHICH COULD RESULT IN AN INTERMITTENT HEADLIGHT CIRCUIT.
WITH THE TWILIGHT SENTINEL SYSTEM ON, THE INTERMITTENTCIRCUIT COULD CAUSE HEADLIGHT AND INSTRUMENT P
INSTALL A NEW PART IN ONE OF THE VEHICLES CONTROL COMPUTERS TO PREVENT THIS CONDITION FROM OCCURING.
AT HIGHER SPEEDS THE CAR HAD CONTROL PROBLEMS, AND WHEN I HIT A BUMP THE CAR WOULD ACTUALLY JUMP AND BOUNCE AND BECOME DANGEROUSLY UNCONTROLLABLE. I TOOK THE CAR INTO PAUL WILLIAMS TIRE COMPANY ON LA
DASH LIGHT FLASHES OFF AND ON, CAUSING AN ELECTRICAL SHORT WITHIN THE TAIL LIGHTS, TAIL LIGHTS ALSO FLASH OFF AND ON. CONSUMER HAS CONTACTED THE DEALER, DEALER HAS YET TO REPLACE PARTS. PLEASE PROVIDE
DASH LIGHT FLASHES OFF AND ON, CAUSING AN ELECTRICAL SHORT WITHIN THE TAIL LIGHTS, TAIL LIGHTS ALSO FLASH OFF AND ON. CONSUMER HAS CONTACTED THE DEALER, DEALER HAS YET TO REPLACE PARTS. PLEASE PROVIDE
FRONT WHEEL FELL OFF VEHICLE, CAUSING ACCIDENT.
BRAKES HAVE GONE OUT MANY TIMES WITHOUT WARNING, CAUSING NEAR CRASHES. 2ND TIME FOR SET OF NEW BRAKES. *AK
Showing the 5 most serious of 8 complaints filed with NHTSA.
