ol' 93 12 valve

I have a 91.5 cummins that is giving me problems. It keeps over charging the battery and burning them up. I have replaced the voltage regulator, battery, has a fairly new alternator. I made sure it had a good body ground along with motor ground, i cant seem to figure out what is wrong. Any help is appreciated.

Thanks

Montana2x2

I've heard that non mopar voltage regulators can do that. Is yours an aftermarket? When mine quit I got a mopar one off a junker and it worked fine.

RuralCruiser007

I ran into the same problem, charging at 18 volts plus. I had just put in a brand new voltage regulator before this. I spent a bunch of time on it and it would charge good every once in a while. I finally looked really close at the connector for the voltage regulator and found that it had green death in it. I used battery termial spray in the connector and then used dialectric grease in the connector. Plugged it back in and then went for a rip, FINALLY had the charging system in track.

All I have to say is the next time I have charging system issues, I will be going to a Leese Nevin alternator.

Just food for thought.

Glenn

ol' 93 12 valve

Yah i bought mine at autozone.

Montana2x2

I think all the external regulators are the same way back into the 70's I paid a couple bucks for one at the junkyard.

wannadiesel

Try a factory one from the junkyard. Pick up 3 or 4 to make sure you get one that works plus one for under the seat.

daking

$55 for a new one at the dealer (piece of mine, i guess)