have cold air on left vents and hot air on right vents?
You have to check the vent door motors actuators if they are not damaged .
Check hose lines that go to the heater core or heater core cloged .
Thanks ,where is the right side vent door motor.
two vents on driver side always blowing hot air, but the two vents on passage side blows cold when a/c is on and hot air when heater is on .....passager works normally its the two vents on driver side that's the problem
Looking for a Used LeSabre in your area?
CarGurus has 1,919 nationwide LeSabre listings starting at $1,000.
Search Buick LeSabre Questions
Buick LeSabre Experts