Question about 1989 GMC S-15 Jimmy
Could be your rectifier/regulator. If it does not work then you might ger up to 18V from the alternator on high RPM. Connect voltmeter across the battery and rev the engine up. The voltmeter must show not more then 14V at any RPM.
Posted on Mar 15, 2011
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Posted on Jan 02, 2017
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