8 out of 10 times it is your voltage regulator that has gone bad. The brushes are worn. This is about the easiest replacement part you can do yourself. The voltage regulator is on the back side of the alternator. Two screws are removed, VR comes out, new one goes in with the two screws. No wiring to mess with. VR can be had for less than 25 bucks.

Next time, you can go to "diesel discussion" or "tech help" and get all the answers you need for problems with your car.

__________________
"Life is tough...it's even tougher if you're stupid." John Wayne


Dave
Pawleys Island, SC

'79 300CD