Radiator fans and AC compressor not working - 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 03-15-2007, 07:57 AM   #11
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DAMM!! thanks
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Old 03-15-2007, 08:23 AM   #12
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The clutch on an AC compressor can be replaced. You may want to look into that with a mechanic.

This whole thread has me wondering though. Is the area where the belt rides on the AC compressor turning or not? The clutch on an ac compressor engages the compressor instead of letting it freewheel. If you have a belt on the compressor and when running the car you don't see smoke and notice a problem beyond the AC not working, I'd be inclined to think that freewheel is occurring.

In that case, then you live in MD. When you posted this I'm pretty sure you had nice cold temps. Our AC compressors aren't programmed to work in cold weather. You'll want to turn on defrost to engage the compressor.

Freon level and relays can keep your AC compressor from working. The fans operate off another relay IIRC and should come on at ~215F (low speed) and ~225F (high speed)
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Old 03-15-2007, 08:32 AM   #13
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if the pully on the compressor isn't turning wouldn't that be more then a bad clutch?
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Old 03-15-2007, 08:41 AM   #14
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Clutch or compressor, yes.
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Old 03-15-2007, 08:50 AM   #15
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Quote:
Originally Posted by showshocka2k
what I am saying is the pulley on the compressor is not turning at all.... my belts are just turning around it.
from the way he'* putting it here the compressor sounds like the thing is junk, and needs to be replaced.
But you'r the resident gearhead so, I'm not going to argue.
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Old 03-15-2007, 09:38 AM   #16
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It'* tough to say for sure. If the compressor was locked up, that belt should smoke and come apart in maybe a minute maximum. That is the only thing that keeps me wondering.
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Old 03-15-2007, 09:40 AM   #17
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And thats why I said he should check his belt for shredage
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Old 03-15-2007, 09:52 AM   #18
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i've been driving this thing like that and didnt notice...but i sat and watched it turn around the comepressor w/o the the copressosr pulley move...AC, defrost...nothing turns it on ...now i did just get a new motor put in so i know the system does'nt have freon...but no. more then just a minute has gone by while running and no shreddage
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Old 03-15-2007, 10:06 AM   #19
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If the belt moves freely w/o smoke and shreddage and the pulley appears to stay still. Turn the car off and look closer. The belt rides on an area that is not connected directly to the pulley you see looking at the front of the compressor. Your description sounds like the freewheel part of the compressor is working good.
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Old 03-15-2007, 10:43 AM   #20
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Quote:
Originally Posted by BillBoost37
It'* tough to say for sure. If the compressor was locked up, that belt should smoke and come apart in maybe a minute maximum. That is the only thing that keeps me wondering.
My compressor locked up a month ago while driving and belt was in pieces right away.
Thanks god chime and "Check gauges" shows up,otherwise I would boil the engine to death.
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