Question about 1994 Buick Century

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Changed alternator, battery light still on, volts a little low

Tested battery it is fine.  Thinking taking new alternator out to get it tested.  Could it be something else.

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I had the same problem...check the wires on the plug leading into the alternator and also the grounds

Posted on Oct 29, 2008

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Im not sure how you tested the alt. but its a good idea to take a volt meter and with the car running,check at the battery and the check at the back of the alternator on the big wire its the 12v feed from the battery,you should read the same voltage at the batt. example 14.3 vor so at the batt. and only10v or so at the alt or even zero V.then we can narrow it down a little to a possible open circuit between the batt. and alt.If you need any diagrams just let me know,hope it was helpful have a good day DB

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