Question about 2011 GMC Acadia Denali

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GMC Acadia Denali 2011 HVAC Blend Door Actuator Connections Diagram

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  • Paul Belanger May 17, 2014

    Diagram for connections # 5, 6, 8, 9, 10.







  • Paul Belanger May 24, 2014

    I have found the Schematic of the HVAC 4 Air Door Actuators of my GMC Acadia Denali 2011.

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No I don't think its the Domino effect at all. I had no problems with the air until I disconnected the battery for a totally different situation. I've read on numerious sites that this is a common problem when the battery has been disconnected. It can't be a coincidence on that many vehicles.

Posted on Jun 30, 2015

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Unless you shorted something out, it is most likely the blend door. They are inexpensive enough to just replace , instead of trying to trace wires, that should never go bad. I have a Tahoe, and they are known for blend door actuators going bad. Symptoms = Heat coming out some vents but not others, when on AC, or just outside air is selected. It's not the wiring, but the door actuator itself.

Posted on May 17, 2014

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Have to get a wiring diagram at a local repair shop

or buy the factory book from Helm.Com

Posted on May 17, 2014

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

honeymokey
  • 3113 Answers

SOURCE: air blend door

Replace the broken actuator.

Posted on Apr 15, 2009

  • 2 Answers

SOURCE: How do you change a blend door actuator on a 2003

Not sure why previous poster showed you how to fix a switch in the door, but anyways.....
I had same problem as you.

My Yukon has the single overhead door, not the "barn-doors", hopefully yours is the same. Open rear cargo door. Using a trim tool (buy the set from Harbor Frieght for less than $10) remove the lower trim (at carpet), upper trim (at headliner), then the right pillar trim (mine has small Bose speaker in it). Loosen trim between passenger side back door and the cargo area main right rear trim. Remove main cargo area right main panel, by unscrewing the big black know, prying out the small plastic plug, and carefully disconnecting the AUX power plug (looks like a cig lighter outlet) once you can get behind the panel a little bit.

Now you are looking at the entire rear system. There are 2 of these actuators. The front one controls airflow going either to floor or ceiling vents, the rear one (towards middle of entire unit) controls AC vs heat percentage flowing through the ducts. Unplug the connector, and 3 screws to remove it.

Install is the reverse.

Posted on Mar 14, 2010

alicantecoli
  • 22246 Answers

SOURCE: 2002 GMC Yukon XL -

No they do go but not by changing the battery its just whats known in the trade as the dominio effect ,us mechanics are used to it this is where you change one thing and something else down the line goes wrong and the poor old mechanic gets the blame ,I think its just coincidence that the actuator valve has decided to go at the same time as changing the battery ,Dominio effect no doubt you will change the valve and then you will get two punctures at the same time .

Posted on Nov 21, 2010

  • 41 Answers

SOURCE: i need a door lock diagram for a 2000 gmc yukon

You will need to register on the forum to see it, but there's a diagram for a 2-door lock on the 6th post down. http://www.tahoeyukonforum.com/forum/showthread.php?t=7452

Posted on May 17, 2011

deucego12665
  • 71 Answers

SOURCE: how do i remove seats

Remove the bolts.

Posted on May 20, 2011

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I have a 2010 GMC Acadia that is having Ac problems. The Ac blows cold on the passenger side and the rear, but hot on the driver's side. Any ideas?


Temperature blend door actuator . There are electric motors behind the instrument panel that control air flow direction. GM calls it a Temperature Valve Actuator Replacement - Left Side
Instrument Panel Insulator Panel Replacement - Left Side (Acadia)

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Callout

Component Name
1
Push-pin Fasteners (Qty: 3)
2
Insulator/Closeout Panel - Left
Procedure Disconnect the electrical connectors.
Caution: In order to avoid actuator damage, DO NOT apply power to the actuator when it is not installed in the HVAC module.
Preliminary Procedure Remove the instrument panel insulator - left side. Refer to Instrument Panel Insulator Panel Replacement - Left Side.
1
Left Temperature Actuator Screw (Qty: 3)
Caution: Refer to Fastener Caution in the Preface section.
Tighten
2 N?·m (18 lb in)
2
Left Temperature Actuator
Procedure

  1. Disconnect the electrical connectors.
  2. Re-calibrate the right temperature actuator. Refer to Actuator Recalibration.

Sep 23, 2016 | 2010 GMC Acadia

1 Answer

What options do I have to fix my A/C problem in my 2010 GMC Acadia SLT?


Automatic or manual HVAC ?
Air Distribution
The HVAC control module controls the distribution of air by the use of a mode actuator. The modes that may be selected are:
• Defrost
• Defog
• Panel
• BI-Level
• Floor
The mode actuator is connected to the mode door by a cam type linkage system. Depending on the position of the door, air is directed through the HVAC module and distributed through various ducts leading to the outlets in the dash. If the HVAC control module detects a fault with the mode door the HVAC control module will try to drive the actuator for a predetermined amount of time, to defrost, which is the defaulted position for the mode door actuator. When the mode switch is placed in the defrost or defog positions the A/C is commanded on and the recirculation door is moved to the outside air position to help reduce window fogging. A/C is available in all modes and recirculation is only available in the panel and bi-level modes.

On the automatic HVAC the whole dash does not need to be removed !
Caution: In order to avoid actuator damage, DO NOT apply power to the actuator when it is not installed in the HVAC module.
Preliminary Procedures
Remove the instrument panel insulator - right side. Refer to Instrument Panel Insulator Panel Replacement - Right Side.
Remove the instrument panel (I/P) compartment. Refer to Instrument Panel Compartment Replacement.
1
Mode Actuator Screw (Qty: 3)
Caution: Refer to Fastener Caution in the Preface section.
Tighten
2 N·m (18 lb in)
2
Mode Actuator
Procedure
Disconnect the electrical connectors.
Re-calibrate the right temperature actuator. Refer to Actuator Recalibration.
The dash doesn't need to be removed for manual HVAC either ! Take out the glove box an the insulator panel ! Do you know what the insulator panel is ? There could be a video on youtube ! This repair would only take a half hour at most .

Jun 01, 2017 | 2010 GMC Acadia SLT-1

1 Answer

Have a 2003 gmc yukon that blows air out of the vents but will only blow cold air


Coolant in system ??
Coolant flowing through 'Heater Core' ??
Code(s) present w/Scanned ??
Possible HVAC issue(s);Blend air door n HVAC box (Under Dash)-Temp Actuator-HVAC control head @ dash.....

Feb 15, 2014 | 2005 GMC Sierra

2 Answers

HVAC heater blend door actuator is not working


check HVAC fuse.if fuse okay heater control module could be the problem.

Nov 19, 2013 | Hyundai Cars & Trucks

1 Answer

Reset DTC codes GMC yukon


Could be the HVAC control processor is malfunctioning.Wtihout testing that would just be a guess .
2003 Tahoe No Rear Heat Fix Suburban Yukon XL Repair

Oct 03, 2017 | GMC Yukon Cars & Trucks

1 Answer

Problem with dual zone heating only one side i check control thermost botton is ok


Sounds like the blend door actuator. It separates the driver and passenger side from getting air on the AZC system. Here are some instructions on replacing it:
The passenger side blend door actuator is used on all models equipped with Automatic Zone Control (AZC). This actuator is located on the front of the HVAC housing to the right of the floor panel transmission tunnel and cannot be removed from the passenger compartment without instrument panel or HVAC housing removal.

NOTE: This procedure is for AZC Systems (Passenger side only).

  1. Disconnect and isolate the battery negative cable.
  2. Remove the glove box door. See: Body and Frame\Interior Moulding / Trim
  3. Remove the lower I/P glove box door surround panel.
  4. Remove the dash assembly. See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair\Instrument Panel Assembly
  5. Remove the HVAC assembly. See: Housing Assembly HVAC\Service and Repair
  6. Unplug the wire harness connector from the blend door actuator.
  7. Remove the 2 screws that secure the blend door actuator to the HVAC housing.
  8. Remove the blend door actuator from the HVAC housing.
INSTALLATION - AZC (Passenger side only)


  1. In stall the blend door actuator on the HVAC housing and tighten the two mounting screws to 2.2 Nm (20 in. lbs.).
  2. Plug in the wire harness connector to the blend door actuator.
  3. In stall the HVAC unit into the vehicle. See: Housing Assembly HVAC\Service and Repair
  4. Install the instrument panel assembly into the vehicle. See: Body and Frame\Interior Moulding / Trim\Dashboard / Instrument Panel\Service and Repair\Instrument Panel Assembly
  5. Evacuate the HVAC system.
  6. Recharge the HVAC system.
  7. Connect and the battery negative cable.
Hope it helps! If you need more, just send me an email at familyguy77351 at yah I wil be glad to finish helping you with more detail.

Dec 12, 2010 | 2000 Jeep Grand Cherokee

2 Answers

200 Jeep Laredo..Air is cold and fan is blowing,


there is a blend door actuator for the laredo and if is bad the air wont come out here is a pic of what it looks like and how to get to it


The single zone heater-A/C system is equipped with a single blend door actuator. The dual zone system has two blend door actuators, one for the driver side blend-air door and one for the passenger side blend-air door.
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  1. Disconnect and isolate the negative battery cable.
  2. Remove the glove box from the instrument panel.
  3. Remove the three screws that secure the blend door actuator to the passenger side of the HVAC air distribution housing .
  4. Remove the blend door actuator from the air distribution housing and disconnect the HVAC wire harness connector from the actuator.
  5. Remove the blend door actuator from the vehicle
to instal
  1. Position the blend door actuator into the vehicle.
  2. Install the blend door actuator onto the passenger side of the HVAC air distribution housing . If necessary, rotate the actuator slightly to align the splines on the actuator output shaft with those on the blend door cam .
  3. Install the screws that secure the blend door actuator to the passenger side of the air distribution housing . Tighten the screws to 17 inch lbs. (2 Nm).
  4. Connect the HVAC wire harness connector to the blend door actuator.
  5. Install the glove box into the instrument panel.
  6. Reconnect the negative battery cable.

Sep 09, 2009 | 1998 Cadillac Seville

2 Answers

Heating system only blows out hot air through the vents


I would look at the air blend doors first, it sound like they are not working or your control in the dash is not working send a signal to them. they work by changing the air from hot to cold or in between.

Avalanche, Sierra And Silverado
  1. Remove the floor air outlet duct extension (1) from the floor duct (2). 0900c152801c9c8a.jpgRemove the floor air outlet duct extension (1) from the floor duct (2)
  2. Disconnect the electrical connection at the blend door actuator (10). 0900c152801c9c8b.jpgBlend door actuator and related components
  3. Remove the blend door actuator mounting screws from the HVAC module.
  4. Remove the blend door actuator as an assembly with the actuator cam. 0900c152801c9c8c.jpgRemove the blend door actuator mounting screws from the HVAC module
To install:
  1. Install the blend door actuator as an assembly with the actuator cam.
    1. Line up the heater/defroster valve lever with the blend door actuator cam slot.
    2. Line up the A/C valve lever with the blend door actuator cam
  2. Install the blend door actuator mounting screw to the HVAC module.
    1. Tighten the blend door actuator mounting screw to 14 inch lbs. (1.6 Nm).
  3. Connect the electrical connection at the blend door actuator (10). 0900c152801c9c8b.jpgBlend door actuator and related components
  4. Install the floor air outlet duct extension (1) to the floor air duct (2).
C/K Series
  1. Disconnect the electrical connector to the mode actuator that is located on the left side of the air distribution case.
  2. Remove the screws.
  3. Remove the adjuster links from the control lever.
  4. Remove the mode actuator.
  5. Adjust the mode actuator by completing the following steps:
    1. Connect the electrical connector to the actuator.
    2. Turn the ignition switch to the RUN position. Allow the self-positioning of the actuator.
    3. Turn the ignition switch to the OFF position.
    4. Remove the actuator from the electrical connection. 0900c152801c9c8d.jpgBlend door actuator-C/K Series
To install:
  1. Install the mode actuator.
  2. Install the screws.
  3. Install the adjuster links to the control lever.
  4. Connect the electrical connector.
  5. Test the circuit operation

Nov 27, 2008 | 2001 Chevrolet Silverado

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