Rear air conditioning setting

2004 Chevy Tahoe. Hot air out of vents on driver's side, cool ...

answers.edmunds.com > Edmunds Answers

Jun 25, 2009 - Hot air from vents-driver side and cool air from vents on passenger side. ... The driver's side vents were blowing out hot air, and everything else wasblowing cold. ... you'll literally have to restart your tahoe/yukon at every traffic light to keep cold air coming ... I was also getting air only out of the defrost vents.

Hot air out front drivers side vents 05 escalade - YouTube

? 3:14
https://www.youtube.com/watch?v=5lnd8UNcx6M
Aug 3, 2013 - Uploaded by South FL Mud Club
Suddenly hot air started blowing out the air vents only on the drivers... ... is a very helpful video ,I wondering if this part number apply for my 04 chevy tahoe? .... I have cold air out of thepassenger side, but warmer air out of the driver's side. .... 2003 Tahoe No Rear Heat Fix, Suburban, Yukon XL Repair!

Heating and AC Temperature and Air Delivery Mode Door ...

repairpal.com > Problems > Chevrolet > Tahoe

Driver/passenger air vents blow hot then cold when using A/C. Back to cold when you restart the vehicle. Upvote (35) ... 2003 Chevrolet Tahoe ... I have a 02 Tahoe ,and the heat system is working only on the ceiling side of the car when turn.

2004 Chevrolet Tahoe Blows Hot Air - Sparky's Answers

Is your heater blower motor working on all speeds ? Are you get any air coming from the rear vents ?

With the car parked and engine idling, turn the ventilation control between windshield defroster and "open air ducts" to front and rear vents. Listen to pinpoint where the valves are that open and closes the air ducts. It sounds like the air duct to rear vents are blocked, and the cold air in rear air duct is coming from "outside ventilation." The air vent to allow hot air to the rear vent is stuck in "open ventilation" mode, like when you're driving in spring or summer months.

This model has a rear heat/cold blend door actuator. Its an electric motor that moves the duct door from hot to cold. When they wear out, they're usually stuck on the last setting

Check your blend air door on the frunt ac unit

possible blend door actuator faulty, or a faulty blend door. This door switches from hot to cold vents. On expeditions equipped with rear AC front and rear AC have seperate actuators. Hopefully this helps!!

I suggest that you take the Vehicle to a Reputable A/c Repairer, NOT a Muppet Shop, as I call them occassionally.
Request a CHECK and ADVISE ONLY. on the system. This will determine the exact fault[s] in the system.
From you comments, I would expect to find a Reducing Freon flow, through a probable Expansion valve failing.
Then you can decide, if on nearing the end of the HOT period, having the Diagnostic done, is the expense justified now, or can it wait until later.
Regards, DT

Sound like the rear temp door actuator is bad.

check you antifreeze level and make sure its full

This link will solve the problem for you

http://74.125.47.132/search?q=cache:YT0z9WoXxCMJ:mbworld.org/forums/e-class-w211/250487-diy-installing-new-changeover-heater-control-valve.html+2004+%22E500%22+mercedes+rear+vent+heat+front+cold&cd=8&hl=en&ct=clnk&gl=us