20 Most Recent 1987 Cadillac Allante Questions & Answers

Question edited for clarity and add maker. Question move from Spanish car maker Seat category, pronounced See-At. OBD Ports are always in front of the driver unless someone moved yours. https://www.google.com/search?q=1987+cadillac+allante+obd+port+location ..

check wiring from the cam sensor to the ECM and the wiring from the ECM to the injector harness connector under the hood and at the injectors. also check the injectors for excessive resistance.

Bad ground under the dash, no doubt. Check all of your chassis ground connections.

buy a book .

Fuses are under ashtray, #8 & #25 + breaker 24 are known issues but various items run off them, u need mechanic unles u know how to trace electrical.Known issues : definately 1987-88 & also some other years :MAKE sure your center console is closed & Latched or lite will stay on.At nite look see if your vanity mirrors lites, or "dome" lites or trunk lites, or brake lites are on.

adjust the cable or disconect it and pull it sound like cable is frozen

Cooling fan Fault - your big fan at the radiator is bad (open hood & see if its running- if not turn off car immediately) & that trips A/C warning. You need a mechanic as a computer chip controls that.

There's a switch ( kinda same shape, color & operation method as your power seat switches) behind driver's seat near the 2 Boot/Top 'release' pull tabs,, it's mounted on the "roof" of the open compartment area behind the seats. Slide your hand along there til you feel it. It recycles the pull-down motor up & down & should release the top. Also try in the trunck, there's 2 hard plastic strings with loops at end,, pull & see if it releases it.

Google for Allante Service Tech Bulletins, Battery Parasitic Draw. & what year ur car is.1987 -88 have probs w/ Fuse # 8 & 25 + circuit breaker 24 - fuses under ashtray.Theyre brilliant cars but now 20-25 years old & many not properly maintained...If ur gonna own an Allante go Ebay & get a Service Manual.