Blowing only hot air on driver side, passenger side ok.
Blending is at the A/C control panel......Check the Water control valve function......Hot water should not be introduced into the Heater Core when in the Cool position on the control panel......
SOURCE: How do you fix the driver side air blend door actuator?
you cannot repair the actuator you need to replace it with new one. These motors turn but get weak with time. if you test it, it works, put it in and it doesn't. this is because the motor is weak, unfortunately GM does not sell these motors separately.
SOURCE: Replace Blend door on 2004 Suburban
My problem is hot air on the drivers side, cold on Pass when the AC is on...2004 Sub
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: 1999 pontiac grand prix gtp dual airconditioning
Two things can be the problem,first,try adding ,a little freon,if it is low,it will only cool one side,then if this does not help,there is a door actuator motor that controls this,it could be not working,the dash has to come out to replace this actuator motor,if this was at all helpful,please rate,thank you.
SOURCE: 2005 Kia Amanti; heater on driver side blowing cold
For those of you who may google this link and are looking for an solution, my local repair shop isolated my 2005 Amanti problem to a $2.78 plastic clip on the temperature blend door actuator rod linkage. It simply fatigued and eventually broke resulting in the actuator rod falling off the actuator door lever. The labor to isolate the problem and to replace the clip did amount to almost $170. Hope this helps those of you in the future.
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