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1999 Chevy Suburban Air won't cool at idle speeds-

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Old February 28th, 2013, 12:43 PM
  #11  
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Ok, compressor then...
But, didn't you say the A/C was working good.
How is it clogged, and working good too ?

Sorry about this, but...
I just can't see how the A/C is causing this. Didn't you turn the A/C off at some point to get that "possible" heat source out of the way to get it to cool down ? There's something real fishy about what they're telling you !!

Last edited by SWHouston; February 28th, 2013 at 1:22 PM.
Old March 3rd, 2013, 6:53 AM
  #12  
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The air was working "great" if we were on the highway going 75mph, wouldn't cool at slow speeds or idle. It didn't work "great" when it was 107 degrees outside....didn't cool worth a damn. It worked "great" at temps 80 or less on the highway. I won't be able to tell if that was the true problem until we get more hot weather but the other day it was in the lower 80s and at idle, parked in my driveway, it cooled better than ever. We shall see. I will let y'all know, as we will be driving through the desert this summer.
Old March 3rd, 2013, 10:31 AM
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Well ok Pop, looking forward to how it goes.
Old March 3rd, 2013, 5:55 PM
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If the A/C charge is correct and the fan is operating correctly, then it might be something wrong w/ whatever type of modulating system the A/C uses. Capillary, expansion valve, etc.
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