Air conditioner/heat does not blow - Page 4 - 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 07-26-2005, 06:29 PM   #31
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Still at work. I will check the relay connections, but are there any other suggestions as to what may cause the compressor not to kick on if it would not be the relay? Again, is there any way to check the relay once I've got it out?
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Old 07-26-2005, 08:18 PM   #32
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you know my AC says it is blowing though the front vents but all it does is blow by the windsheild and feet vents even if i switch it and it isnt cold either. I have the electronic climate control in my car. Does anyone know what is going on ?
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Old 07-26-2005, 08:33 PM   #33
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TV Pro...search for "blowing and vents" by JamesTharp You'll be rewarded with more knowledge than you ever thought possible.

Pakenny... you should be all set with the relay however next I would check the connector on the ac compressor. If the compressor has ever been removed there is a possiblility that the connector clip that holds it in is broken off. But in your case I'm fairly sure you'll have a relay issue.
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Old 07-26-2005, 10:34 PM   #34
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The relay wasn't the problem. I checked the relay for continuity and it was the way it is supposed to be for a relay. The connector for the relay also showed correct voltage. To be sure I used the dielectric grease as suggested. I also checked the pressure cycling switch connector for voltage and got the correct measurement. The drying can also showed continuity. I hate electrical. :evil:

On the driver side of the blower motor I moved a wiring bundle ever so slightly while putting the blower motor in. This bundle goes from the driver'* side of the maxifuse center to the firewall on the driver'* side. Could I break anything there?

The compressor has never been removed, but there is definitely a disconnect from the pressure cycling switch down into the compartment somewhere.
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Old 07-27-2005, 12:01 AM   #35
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Ok..did you check the connector at the ac compressor?
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Old 07-27-2005, 10:23 AM   #36
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Haven't gotten that far yet. Had to quit yesterday. I would have done it yesterday, but since the compressor is at the bottom of the compartment where it doesn't belong, it turns into a more time-consuming task. If it were at the top, I could have just popped the connector off and checked it with everything else. But that'* really only been the first major inconvenience of this car, so I can't complain much.
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Old 07-29-2005, 04:16 PM   #37
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After working on the A/C the other day, it just all of a sudden started working. Maybe from plugging/unplugging stuff. Problem solved! Thanks gentlemen.

And for the dork who tried to hijack the post... make sure the vacuum tube is connected to the vacuum resevoir
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Old 07-29-2005, 04:18 PM   #38
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Glad it self fixed..or the plug/unplugging did the trick.

Some believe that if you leave a problem alone long enough on our cars they might just self heal. Not sure i totally believe that ...but maybe it has merit.
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Old 07-29-2005, 04:32 PM   #39
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well it gives me a reason to stop cursing at the car anyway. I give the Bonne another year, and then it'* back to a smaller car. Going from a 93 Lumina to a 93 Bonne was like culture shock.
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Old 07-29-2005, 05:18 PM   #40
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Aren't they roughly the same size?
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