Last post on Mar 05, 2012 at 11:02 AM
You are in the Chevrolet Malibu
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Chevrolet Malibu, Chevrolet Malibu SS, Heating / Cooling, Sedan
#112 of 151 Re: Fixed the a/c controller on 2003 Malibu base model, easy! [jeromeb]
May 14, 2008 (3:57 am)
Thanks for the info. I friend gave me his 1998 malibu. He was tired of the intermittent AC, bad radio reception, drive window inop and overheating. Found the radio fix on another post (Antenna cable under passenger carpet) The overheating was air in the cooling system and I used your post to resolve the AC issue. Great job and now I'm driving a very serviceable FREE 98 w/ 118K. Sweet.
#113 of 151 Re: Fixed the a/c controller on 2003 Malibu base model, easy! [gifthorse]
May 30, 2008 (5:08 pm)
I own a 98 Malibu, and had problems with the A/C light flickering on and off intermittently. I thought the worst initially, but discovered an easy, easy, easy fix! All one has to do is clean the contacts behind the knobs/controls. That's right! Pull the knobs off, pull the cover plate off, and clean the contacts with alcohol and mild abrasive (i used the end of a screwdriver, gently).
The problem is fixed! The problem may resurface in 3-4 years, as new rust/corrosion forms on the contacts, but it is so easy to fix again! No need to replace the control unit.
#114 of 151 Fixed thrice...
Jun 16, 2008 (4:17 pm)
Since my original posting(s) in 2005, I've fixed the A/C module twice, once in each 2006 and again in 2007. The problem comes back, I'm afraid. I fully expect to be pulling the module again this year.
Here's what I was thinking this time though. Each time I take the controller apart, I become more and more skeptical that the problem lies deep inside the unit. There is NEVER any dust or dirt, and the contacts are basically in the same condition I left them.
I'm wondering it the simple act of disconnecting the unit from the car's 12v power is enough to "fix" the problem. That is, de-powering the unit maybe causes a reset in its circuits. If you could somehow get at the unit from behind and disconnect just the power, maybe you wouldn't have to go to the hassle of removing it entirely.
#115 of 151 Re: Fixed thrice... [globe199]
Jun 17, 2008 (10:01 am)
Find which fuse powers it and pull that.
#116 of 151 Re: Fixed the a/c controller on 2003 Malibu base model, easy! [navylife78]
Jun 22, 2008 (5:23 am)
Thanks for the tip on the A/C problem, have had it for years, was thinking about buying a new switch module. I took it apart and in 10 minutes all was cleared up.
Jul 10, 2008 (8:31 pm)
i have an 01 malibu that the hvac system just stopped working i have checked all the fuses and relays i have also replaced the inside hvac control module and it worked for a few min. and then it quit again does anyone out there have any ideas where i should go from here??
#118 of 151 Re: Fixed thrice... [globe199]
Jul 12, 2008 (11:58 am)
No, I tried that and even after a couple hours of no juice when reconnected it still kept switching back to external air. When I took the glovebox out I noticed that these switches operate a door that just rolls shut to circulate external air and opens for internal. Would there be any issue with just locking the door in an open position? If I want outside air the windows still work.
#119 of 151 2004 Malibu Classic
Apr 21, 2009 (6:25 pm)
I have similar issues to others with the AC working at times, recirculate changing back to fresh air by itself, Now, none of it works, rear defrost does not come on, AC does not work either and recirculated air does not work. I tried the fix but it did not work.....not sure where to go from here.
Also for a while, the AC was always on; even when the blower was in the off position
#120 of 151 Re: 2004 Malibu Classic [meethos]
Apr 22, 2009 (8:19 pm)
Oh my gosh! I have this same exact problem. I talked with someone at a chevy dealer today and they said it was something in the "computer" behind the buttons. They said the part I'd need would cost around $300.00. Clearly, I do not want to pay that. I'd like to take the thing off like suggested in previous posts but I cannot figure out how to do that. The buttons themselves don't just pop out and I have no idea how to actually take the whole thing off. For the last year the ac button light was always ON as well as the light on the button for air being pulled from outside. My defrost won't turn on. Now the AC won't turn on. I can't switch it to circulating air. The AC light was always on even if the vent was turned to off. What do I do???
forgot to add that I have a 2004 malibu classic
Apr 29, 2009 (7:23 am)
i have a 2004 malibu the rear deforst does not work and the ac lite does not come on or the ac ??? can you help thanks