92f150xl

92 F150 all stock

Driving along cruising yesterday Battery light came on and the volt gauge was pegged in the red at 18v. At idle it will return to normal.

Got home. Got the multi meter out and at idle the battery reads 13.8 v. Put a brick on the gas to get the gauge up in the red and battery light back on. Battery then reads 17 v, to high.

Voltage regulator has failed I believe. My question is where is the voltage regulator? I've been reading up on it and some say it's on the fender, some say it's part of the alternator and that a hole new alternator is required.

Chris_1

iTrader: (1)

New alternator

92f150xl

Ahh so the voltage regulator is apart of the alternator?

kd3pc

Yes, it is installed inside the cases of the alternator, you can actually replace the solid state devices ....but is a chore without a vice, bench and the spare VR. much easier to replace the alternator.

IF you live in a big enough city where they still have an alternator/auto electric shop...they can rebuild them and that lets you keep the quality of your's ...as opposed to an unknown core.

I have seen as many as three in a row, bad - out of the box..YMMV

bests

92f150xl

Thanks guys, I'm opting for just an alternator swap. 80 amps I'm thinking will suffice as the only other draws besides factory are a couple led reverse lights.

I've pulled the old alternator out already but was unable to get the pulley off. Hope the new one comes with that pulley. But the power steering pump I bought didn't so I'm not confident but still hopeful.

Worst case scenario how do I get that pulley off? I tried and impact and also tried jamming up the fins attached to it and using a breaker bar but that just cased the shaft to spin inside the alternator

88xlt

Most auto parts places will switch the pulley for you. They will have(should have) an impact wrench capable of the job.

92f150xl

Hahah I doubt the auto parts house around here would be doing anything like that

I might just have to buy new pulley separate to avoid messing with this old one

92f150xl

Good news - rebuilt alternator I bought had a pulley. First place I called the guy did say no pulley, who knows.

If it wasn't for struggling with the stupid pulley I probably wouldn't have swore even once, straight forward swap

David Young

Yep, my new rebuilt alternator I changed last year in my 1991 had a pulley. As a matter of fact, every alternator I've ever changed in my life has come with the pulley installed

92f150xl

Ya me too, I questioned it but the guy was pretty admit that it was not included. Oh well went to a different parts supplier for a better price anyways