Dual Heater Problem

[puryear63]

I have a Chevrolet '04 2500HD CC Diesel.

The drivers side blows only cold air. The passenger side works fine. Can anyone suggest how to fix the problem? It is getting cold.

[pmcsurf1]

I have a Chevrolet '04 2500HD CC Diesel.

The drivers side blows only cold air. The passenger side works fine. Can anyone suggest how to fix the problem? It is getting cold.

 

 

I got the same problem in my 07 Duramax CC 4x4 but my driver side blows hot when the passenger side blows cold. (I'm in Florida) Sometimes when the A/C is off the drivers side will blow hot and the passenger side cold.

Could this be a bad temp actuator?

Anyone else got the same problem?

[00Silverado4x4]

Try a search for blender door actuators. Pretty sure you'll both find ideas/suggestions there.