Heat Problems - Chevrolet Forum - Chevy Enthusiasts Forums

Heat Problems


  Reply  
deadred88's Avatar
CF Beginner

Join Date: Feb 2017
Posts: 2
Grenada MS

February 14th, 2017, 4:06 PM   #1  
Heat Problems

I have a 2004 Gmc Sierra 1400 SLE. It has the manual dual climate control. Both work outstanding on A/C.. When the Heat is on both the passenger side blows heat while the Drivers side blows cold air. Called the parts house they told me it could be the main blend door actuator or the auxillary actuator. What is the difference? Also my mode switch doesn't switch between the different vent modes.... if I have the recirc button on and switch it to defrost the amber light will go off on the recirc button. Which tells me it is reconizing its in defrost just the doors aren't moving. What would be causing all this. Any help would be greatly appreciated. Thanks in advance

 
oldchevy's Avatar
CF Addict

Join Date: Apr 2012
Posts: 2,344
Miami, FL.

February 15th, 2017, 9:17 AM   #2  
The actuators are plastic with plastic gears. They go bad after time. We have all had problems with these.

 
deadred88's Avatar
CF Beginner

Join Date: Feb 2017
Posts: 2
Grenada MS

February 15th, 2017, 1:09 PM   #3  
it is clicking from the actuator on the driver side.... would that same actuator cause my mode to not change on my vents?

 
oldchevy's Avatar
CF Addict

Join Date: Apr 2012
Posts: 2,344
Miami, FL.

February 15th, 2017, 1:14 PM   #4  
If it is clicking, it is bad. There is more than 1 actuator. They serve different functions.

 
Search this Thread
Sponsors