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Originally Posted by BlazerNYC
hello all, i've looked everywhere for the solution to this problem to no avail, which is:
when i turn on the A/C, it sometimes blows out cold air, and sometimes warm air. i checked the pressure at the A/C service port, and it read 45, which is in the full range. what else should i do? am i supposed to add more r134a refrigerant although the gauge reads full? i don't want to screw up the a/c in the middle of summer. thank you all in advance for your suggestions, it is muggy and nasty here in the Big Apple.
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HI, had the same problem. I'm not a mechanic either. There is a switch on the ac unit (ac compressor switch), costs like $20 or something and it has a cable going into it. The switch bolts onto something like a beer can. Easy do it yourself fix. Told the chevy guy the problem and he tapped the switch to make it work, basically told me how to fix, all this was done "under the table" while fixing a different problem. Good Luck