After changing the alternator out this weekend, I kept driving the car even though the voltages were initially lower than advised (13 volts at idle). Car started up and ran fine. Today on the way home from work, I noticed my tach stopped working ( wasn't working when I first bought it, but I put the "fix" on it) thought no big deal. Then the fan on my AC got really low, again with so many CCU problems, I thought again no big deal. The battery light still wasn't on. Stopped the car at the Dentist to get my teeth cleaned
. Came out and battery was dead.
From previous posts you may recall that I have already changed the Alternator. With my voltmeter I checked for AC voltages and read none. I put one lead on the positive battery post and one lead on the terminal block that the battery cable and alternator cable goes into and read about 5 volts.
Also I noticed when jumping the car off, there was a whirring noise in the trunk ( vacuum pump?) then all of a sudden all of my door locks popped open. The locks have never worked since I had the car.
Does someone have a photo on where the ground strap is located on an 82 SD? And does anyone have wiring harness between the battery and alternator.