alternator, bad or wired wrong? - LS1TECH

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alternator, bad or wired wrong?

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Old 06-30-2007, 05:58 PM   #1
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Default alternator, bad or wired wrong?

My voltage is only 12.5v with the engine running so I suspect a alternator problem, the alt. has a 2 wire plug as well as the (+) wire, I was told to ground the black wire from the plug and connect the red wire to the (+) wire, is that correct? I figured I'd ask before I took it off and had it tested. Thanks in advance.
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Old 07-02-2007, 02:05 PM   #2
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Originally Posted by Drumer919
My voltage is only 12.5v with the engine running so I suspect a alternator problem, the alt. has a 2 wire plug as well as the (+) wire, I was told to ground the black wire from the plug and connect the red wire to the (+) wire, is that correct? I figured I'd ask before I took it off and had it tested. Thanks in advance.
You wired it correctly. The alternator may be putting out a little or your reading would be below 12 volts and keep falling as it's running. It's not putting out enough to charge properly. I suggest a good 1-wire alternator form Powermaster or EastCoast Auto Electic.

Last edited by G&HRacing; 07-02-2007 at 02:20 PM.
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