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New Battery and Alternator, and battery won't charge - 2002 S10

psypgmr

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psypgmr New Member

psypgmr

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I have a 2002 S10 with 2.2 4-cyl. I have replaced the battery and alternator, and the new alternator will not charge the battery. What do I need to check? The cables and ground are clean, and I get the full 12 volts when not running; but get no charging output when running.

00Silverado4x4 Senior Enthusiast

00Silverado4x4

Posted
Posted

I'd take the alternator back to wherever you got it and have it tested. If it fails to charge they should be getting you a new one.

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