2003 GMC Yukon XL "ac blow back vent front" Questions

...ac not consistent. The air will blow out of the front vents and then switch to the defrost vents after about a minute or so and then back. When using ac the passenger side vents are blowing out heat. ...

...front vents do not blow anything out. I can turn off the ac and turn it on again and the ac will blow cold ac again but will stop blowing within minutes. Can anyone help? I recharge unit for your ...

...blow cold air. The AC vents in the dashboard do not blow at all. Someone said it might be a fuse, but I don't have a fuse panel diagram for my 98 explorer. Any suggestions? can't help you w/ fuse ...

...AC position the air will blow only out the the front vents Check the vacuum hose going to the heater control valve,it may have popped off. If that is on. check the vacuum hose going to your ...

...blow cold intermittently. If the ac starts out blowing cold air in the front then it may just stop and start blowing warm air. Other times when starting the ac it may not work at all in the front. ...

...AC will blow cold out of every other vent, except for the front vent. sometimes if you move the heat setting all the way to hot, then back to cold it will work. These have feedback motors on the mode ...

AC and heat will only blow out of the front vents when the van is moving at a decent speed when I turn on the AC it hisses and when i stop at a light it hisses the back vents work fine not really cool

...AC is turned on it only blows from the rear vent in the back and not the vents at the front of the vehicle. The air is still cold in the back but there is not air coming from the vents in the front. ...

...ac will not blow cold. I have checked the low pressure ac line and it is cold, the compressor is switching on as it should. could the blend door still be the cause even though the door seems to be ...

...AC unit in the front or two units one in the back and one in the front ?,if two units then the gas content is low as a two unit vehicle should hold at least 1.5 kgs if this drops over time due to ...