JoHnNy sAvAgE

I don't know where your from, but I'm sure there is a parts store (Kragens,Autozone) that can actually test your alternator for you. Just take it out and take it to them.

Richfiero

I thought it had to be in the car for them to test it. ill give one of the part stores a call

90GTRagtop

They can test it out of the car on a stand built for that. Here's the wiring diagram from the autozone site;


As you can see, there are 2 fusible links that could cause a problem. If you take the wires off of the alternator and the reconnect a charged battery, the yellow/white and black/orange wires should each have +12 volts to ground. If either one doesn't have 12 volts, that is your problem. The Light Green/Red wire goes to the voltage guage and the ignition switch.

Richfiero

thanx for the the wiring diagram 90gtragtop. I also found my battery drain problem the person before me installed an alarm on the car.

90GTRagtop

Glad to help and glad you found it. However, if you're still just getting 12 volts when it's running the alternator is not charging. You should be getting around 14½ volts.

Richfiero

ya it is stil not charging but now at least the battery doesnt drain over night.
havent had time to get the alt tested yet tho

Richfiero

it was the alternator. and it was also causing the battery drain. it was shorting out. inside. but the engine is running better and every thing. thanx for the help.

85stangman

eather you birnt out your altiator or you badtey is crap

paulstang

michael you need to learn how to spell.