Drivers Side Blowing Hot Air

[larryboy58]

I have a 04 silverado with the standard non digital dual zone a/c set up. Yesterday the drivers side started blowinf hot air while the passenger side continued to blow cold air. I stopped and turned off the truck then restarted it and it started to blow cold again. Does any one know what happened and how I could fix it?

[thearborbarber]

There was a TSB about your issue. If MS3Dale doesn't chime in the near future send him a PM and he should be able to help you.

[bossier62guy]

I have a 04 silverado with the standard non digital dual zone a/c set up. Yesterday the drivers side started blowinf hot air while the passenger side continued to blow cold air. I stopped and turned off the truck then restarted it and it started to blow cold again. Does any one know what happened and how I could fix it?

 

You've got both a left and right air temperature actuator....one has obviously gone south.

[DaleJrRocks88]

You have a tempdoor actuator located at the bottom of the console. you temp door actuator either has read low voltage or high voltage in which it defaults to hot. You have a bad temp door actuator. Replace the actuator...may have to have a relearn performed on it with a tech 2 or it may just learn it's voltage values by adjusting the slide from hot to cold and back to hot.

I have a 04 silverado with the standard non digital dual zone a/c set up. Yesterday the drivers side started blowinf hot air while the passenger side continued to blow cold air. I stopped and turned off the truck then restarted it and it started to blow cold again. Does any one know what happened and how I could fix it?

 

You've got both a left and right air temperature actuator....one has obviously gone south.

 

[dlstewart01]

http://chevroletforum.com/forum/showthread.php?t=22624