Question about 2001 Buick LeSabre

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When running the A/C on my Buick Lesabre, cold air only comes out of the passenger side of the dash vents. Warm air comes out of the drivers side. The car does NOT have the dual control climate system. It seems something may be blocked under the dash, keeping the cold air to the right side of the car. Any ideas?

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The most common cause in these cars is low refrigerant charge (R134A refrigerant). The safest and proper way is to have the system leak tested and the AC pressures tested with gauges. That said many people buy the precharged cans of refrigerant that come with a charging hose and low side (this is the side refrigerant is added to) charge indicator for about $20. These cans also contain oil for the A/C system. Don't overcharge the system.

Note if you have a leak it will quit again. How long it'll last depends on the nature and severity of the leak.

Posted on Jul 13, 2010

Testimonial: "Freon was 11 ozs low. Had it filled up and A/C works fine. Thanks for your help."

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  • 78 Answers

You may have a bad mode door actuator and you should check the freon in the system if the freon was low it could cause this particular problem.

Posted on Jul 13, 2010

Testimonial: "I took the car in & had the freon checked. It was 11 ozs low. Filled it up and A/C works fine. Thanks"

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1 Answer

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I would have the vehicle checked out by a local shop.

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N423y@att.net


yes it is called the blend door, you either have a sticking blend door or the actuator motor for the door is defective and does not completely shut off the heater core. The pass side has it's own blend door.

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2 Answers

Air


If your A/C has a temperature control on the passenger door (dual zone): It may be set all the way to cold (end of the blue zone). If the driver's side is set to a warm temperature, that may explain the warm air from the vent.

If that's not the case, the a/c temperature mixer door on the driver's side may be stuck .

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