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2002 Buick LeSabre Limited. Airconditioner cools

2002 Buick LeSabre Limited. Airconditioner cools passenger side but the drivers side is weak. This has just shown up this cooling season. For a year or so there has been a clicking sound occasionally--like a damper door relating to the airconditioner, although I haven't heard it recently.

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The dual air on this car has two temp control motors that are electronic. You need to have the car scaned at a dealer to see if it has a code for the left temp feed back circuit. If so you will need to replace the temp control motor for that side.Good Luck

Posted on May 01, 2009


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I have a 2002 Buick LeSabre Limited & with the heater in Auto mode, there is very warm air discharging at the floor on the passenger side, but cool air discharging on the driver side. This is the case...

Well you have 2 or 3 door actuators.They are little electric motors in your HVAC system that flip doors open and close and change air direction(defrost to midlevel to floor)and how mutch air flows across the heater core, if any at all.The issue is that the drivers side is not working.The question is why.Could be the little motors,or the heater control unit.You may also have a HVAC programmer.You can see what the parts look like by going to and looking up your aplication,look under (heater blend door,heater AC control) I see that there are a lot of parts all tied to the heater control.I will just say that I had the same issue on a 2004 Chevy 2500HD with duel climate controls.Duel sliders to adjust temp.Do not know which you have,but dealer said that the actuater were at faul and wanted a lot to replace them.I ended up just replacing the heater control and that fixed the problem. I found mine for under $100.I don't think you will be able to find anything cheep on yours.Well good luck and I hope I have shed some light on this,and hope others can steer you in the rite direction.

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My lesabre blows warm air on driver side cool air on passenger side

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