Question about 1993 Chevrolet S-10 Blazer

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My 95 vortec Chev Blazer acted like the alternator was going bad lights dimmed battery quit charging. Right before the lights went out the radio started cutting on and off and the buzzer that tells you your headights were left on started going off. I replaced the alternator but still not charging battery. any suggestions?

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Get the Battery tested.Check and clean the battery posts and wire clamps .Check and clean the earth (-) wire where it bolts to the chassis and block .Also when you changed the alternator did it have good connection / Plug to the loom (sometimes these corrode causing bad connection).
Has the alternator got an internal or external voltage regulator if its external the fault could be there.
Hope this helps.

Posted on Jul 23, 2009

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This is not just because of the alternator, you got to replace the rectifier circuit too. If the rectifier is not working good then the battery will not charge then you will get all the symptoms what ever you mentioned

Posted on Jul 23, 2009

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