Air conditioning

Asked by GuruS745R Jun 20, 2019 at 12:55 PM about the 2014 Chevrolet Impala LTZ 2LZ FWD

Question type: Maintenance & Repair

Drivers side A/C blowing medium cool air but passengers side blowing cold air.  
I have synced the climate controls on automatic and turned the temp knob
down to "LO" but drivers side still blowing med. temp air.  This just all of sudden
started.

1 Answer

101,685

It's possible that the climate control system has a defect or it might be a problem with a blend door. The ductwork has blend doors that move to get the temperature to the vent where you want it. Could be that one of the blend doors is sticking because the door actuator is defective. You may have noticed a tapping sound under the dash from a defective actuator. The doors are located under the dash and possibly behind the glove box; the actuators are small boxes. Try a spray lubricant on the actuators, or remove them to see if there's a broken sprocket. Might need replacing. It's not a difficult fix.

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