Malibu Another long running GM name, the Malibu has overcome many changes to be one of the top mid size sedans heading into its eight generation.

Chevrolet Malibu
This area is for FWD models 1997 and newer
Platform: N-, Epsilon, Epsilon II.

2003 Malibu heat and ac control unit problem

Old October 9th, 2008, 7:42 PM
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Default 2003 Malibu heat and ac control unit problem

I have an '03 Malibu LS that is having a heat and ac problem. I cannot get any air/heat to blow unless I turn the thermostat up to 4. Nothing comes out on 1, 2, or 3. Firestone has told me the entire heat and ac control unit needed replacing. I did that and it still does not work. When my air is on, every now and then, hot air will just start blowing and the green ac button goes off and then it will come back on and blow cold air.

Also, when sitting still with the air on, my compressor is constantly kicking on and off causing my car to "jump" forward.

Anybody else had this problem? What was your solution?

Please help.
Old October 10th, 2008, 11:12 PM
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Default RE: 2003 Malibu heat and ac control unit problem

My 03 Mali has the same thing going on I just leave it on 4 then turn it down to 3 when I get the right tempurature
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