View Full Version : Very weird alternator problem

08-21-2004, 07:06 AM
I'm having a weird problem, when the car is cold and I first start it the voltage is a steady 14.0 After a few minutes, it starts jumping around - it goes to 12.5 for a few seconds, then 13.6 for a few seconds and keeps going back and forth. Then after some more time has passed, it quits working completely.

After the car has been off for a while, it goes back to the steady 14.0 volts. Well I can't drive it very far because at the end of the trip the alternator has quit working. The car died on me the other day after a 50 mile trip.

I'm not sure what the problem is, could it be the regulator?

08-21-2004, 10:26 AM
It's the regulator. That is built into the alternator. Most rebuilders can rebuild that alternator if no other issues are found.

It's an expensive REMAN alternator. I took mine to a rebuilder that due to the issues just gave me a rebult alternator but it was 1/2 the cost of a parts store replacement.