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2004 envoy ac vents will not open ac comes out below the dash

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When i turn on my ac it blows only at the bottom vent and makes a clicking noise what could it be


The clicking noise is the vent door actuator trying to move, but apparently the vent door is stuck or the gear is stripped. The door and its actuator can be accessed without taking the dash apart.

Aug 26, 2012 | 2004 GMC Envoy

1 Answer

My ac unit is working but will not blow air out of the dash vents. The blower is working


Hey man if the blower is working and air is coming from your other vents i have a few ideas.First i would start by checking your vent selection switch something may be stuck where the dash vents open. If the selector is fine you should try checking the ducting behind the dash it could have come apart or simply be cloged where it routes air to your dash. hope that is helpfull.

Aug 11, 2012 | 2004 Chevrolet Tahoe

1 Answer

On my 2004 Gmc Envoy, Heat only comes out on passenger side, still blows cold air on drivers side. Defrost, floor and vents all produce air flow. Rear heater works fine. A/C works fine. Any idea?


Sounds like the driver's side temperature actuator or blend door are defective. Part of the dash needs to be removed to access these parts.

Oct 26, 2011 | 2004 GMC Envoy

1 Answer

I have a 2004 gmc envoy and it is blowing out nothing but cold air unless you put it to where it is blowing on you then only 2 vents will blow out hot air, changed the blower motor, thermostat, I even...


It sounds as if one or more of the door actuators is not moving the blend doors. Unfortunately, it will require some disassembly of the dash.

Oct 21, 2010 | 2004 GMC Envoy

1 Answer

2004 GMC Envoy XUV (SLE pkg). AC will blow through EVERY vent EXCEPT the front dash vents. Dealer says entire dash has to come off to dx the prob and quotes exorbitant labor costs. Help!


There are two possible problems, a stuck blend door (this common) or the door controller has lost synchronization. The first requires disassembly of the dash and the second can be done with the following procedure'
Pull the HVAC-B (#36) fuse for 30 seconds (located in the rear fuse panel under the seat), then put it back in. Then turn the ignition switch to RUN (no need to start the engine). Don't touch ANY controls for 90 seconds. I don't think it matters what position the controls are in, but some people think it works better if you have the HVAC system turned off. After 90 seconds, the actuators have gone through their paces, the controller has new memory data on the end stops of the rotation of each actuator, and you might be good to go

Jun 11, 2010 | 2004 GMC Envoy

3 Answers

AC will not come out the dash vents all the time. Can lower the fan speed really low and they will sometimes switch back to the dash. All air is coming out the defrost vent.


my ac vent only comes out of the defroster and the floor i replaced the vent door accuator but that didnt work what could be the problem 2004 gand marquise

Jun 21, 2009 | 2004 Mercury Grand Marquis

3 Answers

Dash Vent problem


I got the same problem. I was told it was the AC control module that goes bad and it kills the ability to blow air out the AC dash vents. My Envoy is a piece of junk, electrically speaking.

Jul 16, 2008 | 2004 GMC Envoy

2 Answers

Dash vents not working


It may be the actuator not working properly. Should be above the accelerator pedal to the right.

Keeme

Jun 26, 2008 | 2004 GMC Envoy

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