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Old 07-03-2013, 03:57 PM   #30
wally mayfield
 
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Drives: 2013 2SS 6M
Join Date: May 2013
Location: eastern high sierras
Posts: 507
for a/c to work efficiently, a fresh supply of air needs to go through the condensing coil, a/c on in traffic probably isn't going to work very well.

the temp of the air coming out the vent should be 39*..this is going down the road.

think of refrigeration this way, it doesn't make anything cold, it removes heat..the condensing coil (in the grill) is a heat exchanger, if its really hot out side or no air can take away the heat, your a/c will suck.

sounds like the high side switch on some on these cars may be bad...but 134 isn't as forgiving as the old r-12..
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