I have a 2004 Silverado with driver/passenger air control. When driving along the air conditioning on driver side of compartment turns to heat while the passenger side still blows cold air. If I turn off and restart the truck the air conditioning will work normally for a while and then do it all over again. Anyone know a fix for it?

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: 2004 chevy silverado 1500 a/c heater

when my truck is at an idle, it won't put out any heat in the cab, same thing in the summer with the A/C, what's the fix for it ?

SOURCE: air conditioner problem with 2005 chevy 1500 silverado

I have the same problem exactly, if i turn off the ignition and then turn it back on it begins blowing cold air again. I would like to know what the problen is as it sounds like it is not unique to just my vehicle.

SOURCE: 99 Buick Regal LS dual climate control. No heat passenger side.

the motor for the passenger side
blend door is shot

SOURCE: I have a 2004 monte

Hello and welcome. this is caused by a bad temp door actuator for the drivers temp door. you will need to replace the drivers temp door actuator. this is a electric motor that moves the temp door from cold to hot and hot to cold