Alternator is over charging

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Jul 26, 2008 | 05:23 PM

davio

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Junior Member

Joined: Oct 2006

Posts: 7

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Alternator is over charging

the alternateo reads over 13 amps at idle but when I drive the car it kpegs into the red. the dash lights and head lights get brite. could the alt be bad????

Jul 26, 2008 | 06:12 PM

Apeiron

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Joined: Jan 2000

Posts: 20,981

Likes: 11

From: Mercedes Norte, Heredia, Costa Rica

Car: 1984 Z28 Hardtop

Engine: 383 Carb

Transmission: 4L60

Axle/Gears: 3.54 Dana 44

Re: Alternator is over charging

Those are volts, not amps. Your alternator might need a new voltage regulator.

Jul 27, 2008 | 11:44 PM

crytical point

Senior Member

Joined: Feb 2008

Posts: 441

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From: Sanford, FL

Car: 92 RS Camaro

Engine: 305 TBI

Transmission: T5

Axle/Gears: 3.08

Re: Alternator is over charging

anything over 15volts you should be worried though it is easy to get about 17volts out of a CS130 with some wiring but thats for upgraded components or massive stereo.