A/c putting out cold air. on passenger side warm air on driver side. Had it recharged 2 weeks ago. What would cause this problem?

SOURCE: 2004 chevy subarban blows cold air on one side hot air on other side

i was a GM mechanic for many years, the problem you are having is one of your mode door actuators has gone bad, most of the time it is the actuator on the drivers side that causes the problems, i have seen this many times, sometimes you can take it to the dealer and they can hook the computer up to it and recalibrate it but most times it has to be replaced , it is located under the dash in the area above your gas pedal.

Jeffery Lewis

• 329 Answers
• Posted on Jun 03, 2009

SOURCE: 2004 Chevy Silverado AC is blowing warm air on passenger side.

You have dual zones that are controlled by temperature actuators the passenger side has lost its memory or has gone bad you can put it in self programming by disconnecting the battery for ten minutes then hook it back up start the truck turn the temperature control on but do not touch any other controls let it go thru the self programming for about 6 to 7 minutes then select your temperature you want if it still does not work properly you may have a bad actuator or a bad connection at the actuator

SOURCE: 2000 impala cold passager and warm air driver side

there is an actuator for the drivers side heater that opens the temp door. this motor actuator needs changing. so it is stuck in heat mode and now motor will not move door to cold.

SOURCE: hot air blowing on drivers side when ac is on and

IT IS A BAD CLUSTER ON DASH I JUST REPLACED ONE 188 DOLLARS AND 40 MIN OF LABOR

SOURCE: AC blows hot air on the driver side and cold air

You may have a bad temperature door actuator motor on the drivers side. The actuator is what moves the temperature blend door and when it fails it usually moves the door all the way to the "hot" position. Sometimes if you shut the vehicle off for a bit then restart it the system will work fine for a while then the actuator will again swing the door all the way open or shut. I've replaced several of these actuators [both drivers side and passenger side] for similar problems.