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Cold air blows out on drivers side when heat is on. Hot on
Cold air blows out on drivers side when heat is on. Hot on passenger side. … read more
Ron Z.
Ron Z.
- GMC Tech -
Vocational, Technical or Trade Scho
285 satisfied customers
2015 climate control. Live in Michigan. After driving for a
2015 climate control. Live in Michigan. After driving for a while windows were starting to fog up in auto. Tried to select defrost but could not no matter what sequence of button pushing I tried. I could get vent, floor, vent/floor. But could not select defrost or defrost/floor. After turning truck off and back on, defrost was able to be selected … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
675 satisfied customers
AC light blinks 3 times and goes out, the light on the ac
the light on the ac button, flashes 3 times goes out and ac doesnt run … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,667 satisfied customers
Have an issue with AC only blowing from the floor vents and
Have an issue with AC only blowing from the floor vents and defroster vents. Not out of dash vents. AlsoNo difference between when the AC/recirculation buttons are pushed … read more
Dan
Dan
Dealership Technician
Associate Degree
2,202 satisfied customers
I just replaced the Mode Door Actuator on a 2012 Terrain. It
I just replaced the Mode Door Actuator on a 2012 Terrain. It now shifts air from the floor (previously the only location) to the defroster, but it still does not move air flow to the AC vents. Is ther… read more
sprinkles08
sprinkles08
Technician
High School or GED
18,107 satisfied customers
My 2006 GMC Denali only blows air thru the dash to the
My 2006 GMC Denali only blows air thru the dash to the windshield. I can select the front vents or floor but nothing comes out of the front vents or floor, only the dash to the windshield. It still he… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
18,051 satisfied customers
2005 GMC Serria 1500 5.3 AT Ext. cab 180K miles. prob is
2005 GMC Serria 1500 5.3 AT Ext. cab 180K miles. prob is driverside will blow hot air, pass. side cold. auto temp control set on 60. I've had problem on and off for last couple years. I've tried disco… read more
Ron Z.
Ron Z.
- GMC Tech -
Vocational, Technical or Trade Scho
285 satisfied customers
Gmc envoy: 2004 GMC envoy. A/C works fine. The lower and
2004 GMC envoy. A/C works fine. The lower and defrost vents work fine. The vents on dash won't blow a/c… read more
Eric
Eric
Retired
N/A
33,746 satisfied customers
The heat on my 2004 GMC Envoy will only blow thru the vents.
The heat on my 2004 GMC Envoy will only blow thru the vents. I've replaced the actuator and it still only blows thru the vents. I've taken the actuator out and moved the selector switch from vent to f… read more
Don - Mo Lurch
Don - Mo Lurch
Owner
Vocational, Technical or Trade Scho
10,681 satisfied customers
GMC Sierra 1500 Classic SLE: I have a 2004 GMC Sierra. The
I have a 2004 GMC Sierra. The truck has climate control. I changed the control unit out. I have heat on the left, cold on the right. I am going to assume this problem is a result of the actuator (alth… read more
sprinkles08
sprinkles08
Technician
High School or GED
18,107 satisfied customers
GMC 1500 Series: I have a 2006 sieera pick up k model the defrost
I have a 2006 sieera pick up k model the defrost only works can not turn the knob to any thing else. When I turn on the heat the air comes from the defrost can not move the button to get heat on yur f… read more
Ron Z.
Ron Z.
- GMC Tech -
Vocational, Technical or Trade Scho
285 satisfied customers
Change out illustrations or instructions for procedure to
change out illustrations or instructions for procedure to change out 89018365 recirc door acutator on 2005 GMC yukon denali… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
12,714 satisfied customers
GMC: I have a 2004 GMC Sierra 1500 with/out auto air. A/C Starts
I have a 2004 GMC Sierra 1500 with/out auto air. A/C Starts out on vents,then changes to floor and therm to defrost and stays there. I have tried new controller and acuator. Also tried resetting and c… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Sierra 1500 Classic SLE: 2003 gmc sierra, defroster vents
2003 gmc sierra, defroster vents nor floor vents blow when controls are set. Air cond works on both sides and heater works both sides and is adjustable, only blows out of dash vents. When i first got … read more
John
John
MASTER AUTOMOTIVE TECHNICIAN
2 YEARS COLLEGE
8,101 satisfied customers
GMC Sierra 1500: GMC Sierra 2005 auto dual climate control.
GMC Sierra 2005 auto dual climate control. issue: can only seem to get to 60degrees in vent. just had refrigrant replenshed. when I turn the recirc on and off, I do not hear a difference in the blower… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Sierra 2500 HD SLE: I have a 2004 GMC seirra 2500 hd the
I have a 2004 GMC seirra 2500 hd the the defrost is stuck and wont switch back to front vents how do i fix?… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GM Sierra 1500: I just bought a 2011 GMC Sierra 1500 4x4 Extended
I just bought a 2011 GMC Sierra 1500 4x4 Extended Cab with 18,200 miles on it. On the climate control panel, when turned to floor vents, it doesn't feel like any heat is coming out on driver's side. H… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,287 satisfied customers
GMC: I have a 2006 GMC Sierra Dennali 1500 Crew Cab. Have experienced
I have a 2006 GMC Sierra Dennali 1500 Crew Cab. Have experienced ploblems with the AC ventaltion controls since tuck was new. Truck has been returned to GMC dealeships several times with no resolve. T… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,823 satisfied customers
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,823 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

18,051 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

675 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

285 satisfied customers

18+yrs experience. State Inspector & GMC Diagnostics/Repair

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

230 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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