1987 Ford Windstar Repair Question
Charging probs 87 Tbird LX
What you can do is just check for a bad alternator by simply starting the car and once it's started take the positive cable off the battery. This will turn off the car if the alternator is bad. If not then it's not the alternator. Then it would be an electrical problem. Eventhough they exchange your alternator it doesn't mean it's a good one. I had to exchange an MSD Ignition Box 3 times before I got a working one.
Checking for an electrical problem is simple too. If the car turns off. put the key in the off position and connect the positive wire back to the battery terminal. Now you gotta do this in a quiet and preferably in a somewhat shaded area, Ok when you place the cable back there should be a click or you should see a spark, That means that there is a short or that a switch that is on. Check all the switches and make sure they are off, High beams, sunroof, just miscellaneous switches should be checked to see if they are off and then retest the connection.
If this problem persist, then it should be checked by an electrician. My electric guy charges 60 bucks to tell you what the problem is and fix it. Just make a couple of phone calls to local automotive electricians.
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