old4runner

this morning my brake and battery charge light came on....but the car kept going and the voltage was about half after about a mile the voltage was back up and the brake and battery lights went out. This afternoon the same thing happened but the voltage wouldn't come up unless i kept the motor at about 4k rpm.....My instinct says alternator....does anyone have any other ideas. it is an 87 all stock 22re.

MMA_Alex

brake and batt light usually means alternator. you can take it to a number of different parts stores and have it tested for free to see if it is indeed dieing

DeathCougar

iTrader: (23)

Alternator, or belt. If the belt is tight...then its the alternator. I;ve had the same problem twice on my 86, and once on my 87.

pepsibluefloat

alternator or battery! most likely alternator. Most auto-part stores will check your alternator for free if you dont know how to use a voltmeter or dont have one. Try checker, autozone, pep-boys, etc..

*edit* ah! MMA beat me!

old4runner

yeah, that's kind of what i was thinking thanks guys

rdlsz24

Pull it out and take it in for a more accurate bench test. They can test it while still in the car, but the dude I had test it at AutoZone said it's not the accurate, and was overall just kind of whiney that he had to come outside in the heat and test mine (boo-hoo).

Rob

b7_

I had the same problem on my truck, I replaced the alternator brushes and the problem went away. Cheap 10$ fix.

old4runner

it was the alternator, thanks guys