ALTERNATOR - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-11-2004, 06:00 PM   #11
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Autozone has some problems with quality assurance on their alternators.
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Old 04-11-2004, 07:35 PM   #12
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If you have a bad alternator, replace the battery as well if it'* over a year old. A weak battery will kill a new alternator. Always replace them in pairs, or you'll be caught in a cycle like you are.
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Old 04-12-2004, 12:43 AM   #13
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willwren, very good point on replacing the battery. Touche'
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Old 04-12-2004, 12:53 AM   #14
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A weak alternator will stress a battery by constantly under-charging it. Then the Alternator eventually fails, leaving you with a weak battery. Now your new alternator is working extra hard to keep the weak battery charged.

You see the point

But to be sure, you do need to clean all your connections at BOTH ends of ALL cables. Disconnect, clean, reconnect. All cables, all mating surfaces.
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Old 04-12-2004, 02:43 AM   #15
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But how could it be the battery the car starts right up in VERY cold or hot weather with no problem
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Old 04-12-2004, 03:22 AM   #16
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He was saying that a series of weak alternators will cause premature death of a battery. Happened to me. Had to goet a new battery two months after the alt took a poo on me.
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Old 04-12-2004, 05:30 AM   #17
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ok ill go and get a new one tommorow and see what happens
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Old 04-12-2004, 05:33 AM   #18
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Well, if your car can start just fine after sitting a few hours, the battery is probably ok for now. Not to say it won't go, it might. But I wouldn't buy a new one until I was sure. Autozone or Sears should be able to test the battery.
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Old 04-12-2004, 05:35 AM   #19
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i had the battery tested like 4 times that was not the problem either
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Old 04-12-2004, 05:37 AM   #20
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To go through 15 alternators in a short amount of time means there has to be a bad ground or short somewhere that is overworking the alternator. You need to find that. Where to start looking, I don't know.
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