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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Not charging

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Old May 5, 2009 | 02:02 PM
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From: Macclenny FL
Default Not charging
Well, my buddies 95 T/A isn't charging. We tested the alternator at Advance and it passed. We checked the wires and they are good. The exciter wire from the harness has 12v coming from it. The alternator has a magnetic pull to the back of it. I was told that it meant it was charging. It is reading 12.09V on the volt meter at the back of the alternator. I let him use my alternator and we have the same results. Has anyone ever seen a bad gauge cause the alternator not to charge? It only reads 8v.

-Thanks
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Old May 5, 2009 | 02:07 PM
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I had something similar happen on my Suburban. After I chased it for a week it ended up being a loose wire on the starter.
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Old May 5, 2009 | 02:16 PM
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I'll make sure he checks it. We did just rebuild the motor so, very probable.
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Old May 5, 2009 | 03:13 PM
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The wire on the starter was tight. Rechecked connnection of other wires. Tight also. Any other ideas appreciated.
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Old May 5, 2009 | 05:18 PM
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Was that voltage reading at the back of the alt with the car running?
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Old May 5, 2009 | 05:27 PM
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Did you check the ground to the motor? Ground from motor to chasis? Terminal screws to the batter are tight?
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Old May 5, 2009 | 06:21 PM
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Sure it isn't the battery? When my car sat for over 6 months the battery was shot because I didn't keep a trickle charger hooked up to it.
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Old May 5, 2009 | 08:28 PM
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anything happen with this one? i have the same problem..
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Old May 6, 2009 | 07:37 AM
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Originally Posted by 97lt1camaro
Was that voltage reading at the back of the alt with the car running?
It was reading 12v, which is battery volts.

Originally Posted by ss.slp.ls1
Did you check the ground to the motor? Ground from motor to chasis? Terminal screws to the batter are tight?
He's checked the grounds. He's not too famaliar with these cars. I may need to recheck everything for him. Probably going to just un hook all the stuff that has to do with the starting, charging system and start from scratch.

Originally Posted by speed_demon24
Sure it isn't the battery? When my car sat for over 6 months the battery was shot because I didn't keep a trickle charger hooked up to it.
It was dead, we now have an Optima Red Top. Works like a champ.
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Old May 6, 2009 | 10:46 PM
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Okay the problem is solved. My buddy is the type that likes everything.....pretty. He had the accessory bracket powder coated and it wasn't getting a good ground. Car had alot of bugs. Thanks for the input guys.
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Old May 7, 2009 | 11:43 AM
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Originally Posted by SpeedDensityZ
Okay the problem is solved. My buddy is the type that likes everything.....pretty. He had the accessory bracket powder coated and it wasn't getting a good ground. Car had alot of bugs. Thanks for the input guys.
Good to hear you found the problem.
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