Question about 2003 Chevrolet Impala

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2003 Impala air conditioner blower has been coming on and off. Has been gradually getting worse.

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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 send a signal to the window motor. When the computer gets confused strange things will happen or not happen. Of course you may have to re-set your radio stations. I actually had to do it twice on my Bonneville because the first time the blower would only work in low and medium. After the second re-boot, everything was fine.

Posted on Sep 03, 2010


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Posted on Jan 02, 2017


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