Re: i have 2004 suburban, when the ac is on it blows hot...
Sounds like a heater/ac door is not working.take apart black air box under dash but only after checking lines and wires making sure that side is not worn threw on something.
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Does the vehicle have dual zone climate control, where the driver side and passenger side have different control? Sounds like a blend door issue on the driver side. Why did you replace the passenger side, was it blowing hot too when AC was on?
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.
? 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!
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.
I would suggest you work from a factory diagnostic manuals,I wouldn't even go to the vehicle the first time, without info on any system or problem All your saying is your not familar with the system & you you can't be,you need your reference material & wiring diagrams each & every time, so you have somewhere to start your testing
Had same problem on my 04 Suburban. Dealer's service dept said the passenger side temp sensor was defective causing the driver side actuator to continuously search. They replace the sensor about 2 months ago and A/C has been working fine ever since. Repair bill was $400+.
2004 Suburban air conditioner blows hot air to the dirver side but cold air to the passenger. This does not happen all the time but has occurred several times this last summer.
You need to replace the drivers side temp actuator that is located on the left side of the HVAC box. It is retained by 3 screws and is fairly easy to replace.
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