Wussy Alternator - 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 08-22-2003, 01:39 PM   #1
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The lady I bought my car from back in May of 2002 put in a new alternator right before she sold it to me. Here'* the issue, when I turn the A/C when cruising along the car starts to surge at times, plus at night when I hit the brakes I can see my headlights dim for a split second. According to my RPO codes: K68 - generator 105 amp

Too weak? Or is this how I have to drive?
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Old 08-22-2003, 02:13 PM   #2
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This may be a stupid question, but did she put in an oem alt rated at 105 amp? Or do you have an aftermarket sound system in the car? It may be that you don't have the correct alt for your needs. My opinion.
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Old 08-22-2003, 02:35 PM   #3
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I've been running a 200 amp DP alt in mine for quite a few months now. It has run WAY better than the OEM one that I use to replace every 5 months.
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Old 08-22-2003, 03:50 PM   #4
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I just installed my 160 amp DP. Big difference. I was having trouble with a 105 as well. These alternators from Ty also have beefed up bearings. Like most, my rear bearing is what failed on my old one.
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Old 08-22-2003, 03:57 PM   #5
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I've never experienced alt. problems. (Mine'* OEM...has been on for at least 2-3 years. I got the car 2 years ago) Is this because I don't need extra amps since I have no system and things? I've heard ppl having to replace theirs a lot. How much would I benefit if I got a 200 alt now?
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Old 08-22-2003, 04:01 PM   #6
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A 200 amp would probably only benifit you if you had a system. I plan on running a cap or two and some high power equipment in mine so the 200 amp will come in handy. I think DP has cheaper lower amp ones that would work as well. A stock system can probably make due with a stock alt, such as yourself.

I was replacening my alt way to often and that is why I opted for the DP alternative. IF yours is working fine, no need to mess with it. If it is haveing issues, a beefed up DP alt might be the way to go.
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Old 08-22-2003, 04:21 PM   #7
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I'l be getting some better 6x9s and a deck sometime...no subs on this one though. I guess my stock alt should be fine with that too.

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Old 08-23-2003, 12:29 AM   #8
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My stock alt was in my car for most of its life but the replacements found at most shops is the issue that forced the research into a better alternator.

The rear bearing is the main issue not only for its life expectancy but also its heat transfer and the ability to deal with the heat transferred.

The units I offer are more of a courtesy than a moneymaker but they are backed by a reasonable warranty and I have had no major problems.

Ty
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Old 08-23-2003, 12:56 AM   #9
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I don't have an aftermarket sound system so I'll have to go with Bill on this one and go for a 160 from Ty (I'll be in touch). But you all agree that this is related to the alternator?
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Old 08-23-2003, 01:12 AM   #10
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Ironically I don’t. I suggest digging further to be sure. Start with a trip to Autozone to have it checked for free. A second opinion is always good. Then go from there. Redo cables and battery first then check it again. Then do the Alt.

Ty
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