Question about 2005 Chevrolet Tahoe

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My 2005 chevy tahoe AC is blowing hot air. What is the problem?

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Try unhooking one of the battery cables and leave it off for at least 20 minutes. When you hook it back up the computers should re-boot. That has solved problems for me with heater, interior lites, power windows, AC, day time running lites, power mirrors, fast idle, rough or slow shifting, CD player, and wipers on GM autos and S-10 PU and Dodge trucks. None of the switches are connected to the device they control anymore. The switch tells the computer to open the window and the computer sends a signal to the window motor. When the computer gets confused strange things will happen or not happen. Things like one headlight stays off etc. I actually had to do it twice on my Bonneville because the first time the AC blower would only work in low and medium. After the second re-boot, everything was fine. Of course you may have to re-set your radio stations.

If that does not work, open the hood and see if the compressor clutch is engaging. If not jiggle the wire to it and check the fuse for the AC. If the clutch is turning and/or the fuse is good then you need to take it to a mechanic that is licensed to do AC. If your freon is gone, he is prohibited by law to recharge it until he repairs it and can verify that there are no more leaks.

Posted on Sep 03, 2010

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