Low voltage problem on 3rd gen?

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Nov 17, 2008 | 05:38 PM

1987IROC350

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Joined: Nov 2005

Posts: 700

From: Center Point, Texas

Low voltage problem on 3rd gen?

My windows go up very slow. Also if I have the headlights and fog lights on my heater fan will barely blow heat. When I turn off all the lights it speeds up. I have the original alternator on the 1987 car. My volt meter shows voltage drops to 7 when acc., lights are all on.

Do I just need a newer alternator? Also how many amps are safe? I see them from 60 to 100amps.

Last edited by 1987IROC350; Nov 18, 2008 at 06:16 PM.