2005 GMC Yukon "truck hot cold" Questions

...to blow cold. Why is it doing that and how do I fix it?? Could be low on freon, a faulty expansion valve on the rear system, or other issues.  Can you tell if the rear ac lines are hot and cold

...cold air and the hot air depending on what you want. Worked good for a year, and now the passenger side gets cold air and not hot. Another $600 going out the door. The repair shop said that sometimes ...

driver side hot air , pass and rear cold air The driver side is the only vent blowing hot air , the defrost and passenger and rear all blow cold air . baffle doors in ductwork stuck in position..

...hot and not able to move to cold air. However if you are low on freon with a truck that has front and rear ac then there will be a temp diff between the two. If it is hot air out the front like the ...

...is ok, feeel heater hoses. If one is hot , and the other cold, then remove both and flush heater core. If both are hot, suspect blend door problem in heater box. probably need pro help for

...should be hot and the other cold if it is working. Try to recailbrate the blend door actuator. Remove the HVAC module fuse. Wait at least 15 seconds. Replace it, turn the key on and wait 40 ...

...cold air on one side and hot on the other? does'nt do it all the tme but when it does that air is hot. you have a motor sticking and I do not eveny you taking it apart if you want directions to do ...

...cold to hot bar on the bottom of the heater display blinks with all the arow lit up but the air is always cool. I checked the fuses but they are fine. help please you might need to change the ...

it is going from cold to hot, i have to stop the engine to get back to cold first check for radiator leaks, then replace thermostat

air conditioning turns form cold to hot one air conditioning turns from cold to hot one side,sometimes on driver side and other times on the passenger side,dont know why. r134a low