Question about 1987 Ford Econoline

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Battery keeps draining down at night.when I hook up battery it sparks.I had some injector work then this started happening. The side door power locks didnt work and now they are working. the cruise control stopped working and the mechanic that work on the injectors said he checked the wires and fuses to the cruise control but couldnt find the problem. I have tried two new batteries with the same draw down. Alternator is putting out when I checked it. It takes 8 hrs for complete draw down . I am now concidering putting in battery cut off swich to completely isolate the battery untill I can find the problem. I dont know were to start but I can follow directions well and do have the time . I also have a volt meter. Please give me some direction to follow to diagnose my problem . Thank you , Don

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Not an expert, but I expereinced a similar problem in my 1991 Econoline and it was the voltage regulator.

Posted on Jul 21, 2009


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