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GMC Envoy Heating Ventilation and Air Conditioning

111 messages,  Last post on Jul 08, 2012 at 11:09 AM

You are in the GMC Envoy Forum.

What is this discussion about? GMC Envoy, Heating / Cooling, SUV

Messages Page 5 of 12

#32 of 111 Rear HVAC & Radio Controls Dead by hardhawk

Jul 01, 2009 (7:11 am)

The rear HVAC and radio controls on my 2002 Envoy SLT have quit working. It is as if there is no power to the controls as neither the rear HVAC or radio controls will come on when you push the respective power buttons on the back of the front console. When you turn on the lights the markings on the control panel light up so you can see the buttons, etc., but you can still not turn on either the HVAC or radio. I checked the rear HVAC fuse and it was fine. Local non-dealer mechanic looked at it and found all wiring and connectors to be good. He thinks it is caused by some control module, but does not have the GM repair book to look at and check it. Anyone have similar issues or ideas for me to cehck before I take it back to the dealer? Thanks.

#33 of 111 problem finding the right part online by shaapenn

Jul 08, 2009 (12:33 am)

I have read some of the other people's tales about the problems with the 2003 Envoy SLT XL air conditioning blower motor control module. I have been without air for about a month and finally had a friend take a look and found out that mine was bad. My problem now is that looking online I keep finding the 7 pronged one instead of the 3 prong. I read someone's input about going to a Super Parts AC Delco but I don't have one of those out here in Hawaii and am desperately trying to find the right part online instead of having to pay the dealer 2 or 3 times the amount. Can anyone point me in the right direction about an online site for good parts?

#34 of 111 GMC ENVOY Air problem by payge

Jul 16, 2009 (11:40 am)

I have a 2003 GMC ENVOY. Last month the air would just stop working for 5 sec. and then turn back on. It would quit for 15 sec and then turn back on. Then it would work fine. Now I am lucky if the blower works at all. I would like to know if anyone else has had this problem. Sometimes the air works and sometimes it will not. It will work on 1,2,3,4 and will quit on 5. I can sometimes get the vent air to come on and then hit the air button and sometimes the air will kick on.
I don't believe it is the compressor but maybe a switch. I called my local GMC dealership and they said they have never heard of this problem. I do not believe that. Not from reading this. Any help will be great. Thanks.

#35 of 111 Heat/Air problem by oncelost

Jul 16, 2009 (5:07 pm)

I have a 2002 Envoy and am having a problem. When I turn heat/air with the drivers or passenger control, extremly hot air is blowing out the passenger side. No matter what temp I set the passenger to it blows as hot air as possible, while the driver blows whatever I set it at. Does anyone have a clue? I would appreciate any help.

#36 of 111 Re: 03 Envoy Random HVAC Blower Operation [siksa] by onionring

Aug 21, 2009 (1:41 pm)

Replying to: siksa (Aug 29, 2008 4:42 pm)
Is the module under the foam padding underneath the blower motor (towards the floor side)...I've only dropped the glove door down to look behind it...I can see the blower motor unit....also what color are the wires that plug into the blower from the module??..looks like a purple and brown wire..

#37 of 111 02 Envoy XL Rear Air Problem by bowtieracer

Aug 30, 2009 (10:35 am)

I have an 02 Envoy XL. Automatic HVAC controls. The rear air blower quit working. I removed the rear panel to access the blower assy. Upon doing some tests, I found that the motor would blow fine if I manually grounded the ground wire that goes to the motor. Is there a bad control module somewhere that controls the motor with it's ground or is the front control switch bad? I'm not familiar with this vehicles wiring configuration and am at a loss as to where to check next. Any history on this problem? Thanks in advance.

#39 of 111 A/C Heater Blower Problems Not blowing & not turning off by scsweetpea

Jan 05, 2010 (3:25 pm)

I'm having tow problems:
1) When a/c is on sometimes the blower blows, sometimes not. Turning the speed up or down does not adjust the air flow. It might blow a little bit but then when driving down the road it turns on full blast. Then on it's own when it wants to starts blowing nothing again.
  
2) When I turn the car off the A/C Heater Blower does not turn off. Once in awhile if I keep messing with it or turn the car on and off it might stop. It has drained my battery twice now and I have to unhook the battery to get it to stop.
When I hook the battery back up, start the car, I do not turn it on and it will turn on automatically even though you do not hear it and then I am back in the same boat again.......
  
Somebody please help!!!
Thanks Jess

#40 of 111 Re: A/C Heater Blower Problems Not blowing & not turning off [scsweetpea] by cbwilsha

Jan 07, 2010 (4:05 pm)

Replying to: scsweetpea (Jan 05, 2010 3:25 pm)
I answered your other identical post with a solution to your problems shortly after you posted it. That was 2 days ago. Have you fixed your problem?
 
C.B.

#41 of 111 Re: A/C Heater Blower Problems Not blowing & not turning off [cbwilsha] by onionring

Jan 07, 2010 (4:27 pm)

Replying to: cbwilsha (Jan 07, 2010 4:05 pm)
I brought it to me dealer....they fixed it....some of the wiring needed repairing...reason???...cost was $89.00...so I did care...works great now..now my posi traction is jerking only when I turn to the left...had them drain fluid...ran it...about 100 miles...still does it...not sure what to do next...mileage 128,000..

Messages Page 5 of 12

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