Question about 2005 Pontiac Sunfire

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The gear in my blend door actuator is broken, I'm not sure what tell's the actuator to stop after the blend door has been open or closed, I'm afraid the new one will stripe out to, because

I have tried hanging on to the output shaft of the new actuator, thinking that there might be a thermal relay or something that would trip and the motor would stop turning, but the actuator just keeps on actuating

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Posted on Jan 02, 2017

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SOURCE: headlamp door opening actuator control

We had the same probem and it was very annoying. We replaced the motor and the problem went away. Good Luck!

Posted on Aug 01, 2008

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SOURCE: A/C and Heater Blend Door Actuator

location is on ac and heater box under dash.Good luck big jab to fix it.

Posted on Mar 13, 2009

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SOURCE: 99 Grand Am Turn Signal Relay Actuates By Itself

I had this problem quite some time ago and found a solution in a grand am forum. I rember I took off the top plastic panel on top of the steering column and there is a single screw (torx?) underneath. Remove the screw and the entire turn signal and wiper arms come up and off. There is a copper plate that will have grease in the slots, clean the grease off and it should be ok. It has been a while but I remember the clicking sounded like it was coming from the hazzard swith behind the radio but that was not the problem-it was the copper plate. It is an easy fix. Hope this helps.

Posted on Apr 19, 2009

SOURCE: i turn the knob to a specific vent but the air is

the cable for that knob is moved out if you can you have to remove it and then fix it back , it will start working, thanks.

Posted on Mar 05, 2010

  • 248 Answers

SOURCE: What do I have to remove to access blend door actuator

very lenghty process. too long to describe here....go to Bonneville Forums read the text and follow linked there at the bottom....very good and detailed....I'm doing that right now,,,,it is a bugger,

Posted on Apr 16, 2010

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How to replace the door blend actuator on 2009 lincoln mks


Right side or left ? Electronic Automatic Temperature Control or manual ? Temperature or mode door ?
Temperature Blend Door Actuator - LH Removal and Installation
NOTE: It is not required to install the new LH temperature blend door linkage parts included in the LH temperature blend door actuator service part kit if only the temperature blend door actuator requires replacement and the linkage parts are not broken or binding.
LH temperature blend door actuator and linkage
  1. Remove the 2 lower steering column opening cover bolts.
  1. Detach the lower steering column opening cover.
  1. Disconnect the in-vehicle temperature sensor aspirator hose and electrical connector.
  1. Position the instrument panel wire harness away from the LH temperature blend door actuator.
  1. Remove the 3 LH temperature blend door actuator screws.
  1. Disconnect the LH temperature blend door actuator electrical connector.
  1. Remove the LH temperature blend door actuator.
  1. Manually operate, and inspect the LH temperature blend door linkage for incorrect placement, binding or damage.
Temperature Blend Door Actuator - RH, Dual-Zone EATC Removal and Installation
NOTE: It is not required to install the new RH temperature blend door linkage parts included in the RH temperature blend door actuator service part kit if only the temperature blend door actuator requires replacement and the linkage parts are not broken or binding.
RH temperature blend door actuator and linkage
  1. Disconnect the glove compartment damper from the glove compartment.
  1. Remove the glove compartment.
  1. Remove the RH lower instrument panel insulator.
  1. Remove the RH lower floor console trim panel.
  1. Remove the 3 RH temperature blend door actuator screws.
  1. Disconnect the RH temperature blend door actuator electrical connector.
  1. Remove the RH temperature blend door actuator.
  1. Manually operate, and inspect the RH temperature blend door linkage for incorrect placement, binding or damage.
  2. Mode Door Actuator - Defrost/Panel/Floor Door
  3. Removal and Installation
    NOTE: The defrost/panel/floor mode door actuator can be accessed from below the driver side of the instrument panel.
    NOTE: It is not required to install the new defrost/panel/floor mode door linkage parts included in the defrost/panel/floor mode door actuator service part kit if only the mode door actuator requires replacement and the linkage parts are not broken or binding.
    Mode door actuator and linkage
    1. Remove the 3 defrost/panel/floor mode door actuator screws.
    1. Disconnect the defrost/panel/floor mode door actuator electrical connector.
    1. Remove the defrost/panel/floor mode door actuator.
    1. Manually operate, and inspect the defrost/panel/floor mode door linkage for incorrect placement or damage.
    Mode door actuator linkage only
    1. Remove the mode door linkage.
      1. Depress the tab and remove the panel door lever.
      1. Remove the floor/defrost door intermediate lever screw and floor/defrost door intermediate lever.
      1. Pull straight outward to remove the floor/defrost door lever.
    Mode door actuator and linkage
    1. NOTE: When installing the mode door actuator, make sure that the panel door lever and floor/defrost intermediate lever are correctly aligned with the mode door actuator cam.
      To install, reverse the removal procedure.

Nov 10, 2016 | 2009 Lincoln MKS

2 Answers

NO HEAT STUCK ON AC HEAR CLICKING IN CENTER CONSOLE


Air Temperature Control Blend Door Failure No Heat or no AC (dependes on where door sticks)

In all modern cars there is a tiny DC electric motor driven gear drive that moves a plastic door that blends heated and cooled air from the AC and the heater core, this is called (interestedly enough) the air temperature control blend door actuator. The motor that moves this door fails because the door starts sticking from warping, most common complaint is no heat but it can be no AC as well. To replace these parts (blend door and blend door actuator) you must remove the entire dash from the car. Always have this problem confirmed by a dealer or qualified repair shop as it is a very expensive repair.

Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.

Nov 05, 2012 | Cars & Trucks

1 Answer

My heat works great in the front but the rear vents only blow cold


The blend door actuator is located in the left rear quater panel. It's right there when you remove the trim panel (left side rear) Below is a picture of it when panel is removed along with another picture of the air duct system. I also gave you a picture of the connector at the actuator. Make sure you are geting power and test opening and closing. Worst case you could make the blend door stay to where you are geting heat until you can repair the problem...11_6_2012_12_34_03_am.jpg11_6_2012_12_34_21_am.jpg11_6_2012_12_34_35_am.jpg11_6_2012_12_34_48_am.jpg

Nov 05, 2012 | 1999 Ford Expedition

1 Answer

Rear AC / heating thumping sound


Yes the noise can be gear "jump" over, the teeth don't break since they are nylon in most cases. This is most often caused by a sticking/warped air temperature control blend door.

Apr 20, 2017 | 2004 Ford Expedition

1 Answer

When i turn the heat on it makes a clicking sound, and it blows out cold air, but when i turn cold temp on the clicking sound stops, until heat temp is turned back on. please tell me how to fix this...


Your ac blend door is broken or the actuator that opens and closes the door is broken. The ac blend door moves up and down to direct air flow through the heater core(for heating) or evaporator core(for cooling).

When the door mechanism breaks, the blend door falls down and you will only have ac but no heating.

You can buy a ac blend door kit for your explorer, they cost about $120 on ebay or other places.
search for Explorer ac blend door kit.

The duct is under the the dash on the drivers side. And you will have to cut open the duct to install the replacement door.

Heres a link to a tutorial of how to do the job.

http://www.heatertreater.net/Ford%20Explorer%2002-08.html

Sep 19, 2011 | 2004 Ford Explorer

2 Answers

2004 f350 ford heater blows cool air but hoses are both warm-where do i start looking


check to see if the blend door is moving where you change the temperature setting. I think your blend door is behind the glove box. Here are instructions for removing the actuator. Take it off, plug it back in and see if the motor rotates. Also check to see if you can rotate the blend door by hand. If you can rotate it by hand, the motor is probably broken of the gears are stripped. Let me know if you have questions.
  1. Release the stops and lower the glove compartment door.
  2. Disconnect the connector.
f4b0b74.gif Fig. Blend door actuator-F-250 & 350


  1. Remove the two screws. Rotate the blend door actuator and bracket assembly. Remove the electronic blend door actuator and bracket assembly.
  2. To install, reverse the removal procedure.

Oct 17, 2010 | 2004 Ford F350

2 Answers

My 2005 Kia Sedona heater is blowing cold air even when temperature knob is turned to hot. Friend of family looked at it and said it was the "blend door actory wayer" -- but he was not sure how to...


yes, actuator--black box with motor and gears inside that rotates the blend door. I think yours is right on the front of the heater box, to the right of center under dash. Remove actuator and check door for proper operation. If it opens and closes smoothly by hand, replace the actuator. If the door is sticking, you will probably have to take the heater box out of the car, split it open, and repair whatever is keeping it from opening.

Oct 11, 2010 | 2003 Kia Sedona

2 Answers

If the heater is not getting warm and the temp gage is reading around 180 degrees could it be a valve or the temp control switch?


This sounds like the blend door actuator. This is a little door in the vent box down under the passenger side dash that opens and closes to change the vent temperature from heat to a/c. It is a little motor that opens the door. It tends to stop working due to the elements that it is in. I hope this helps!! Thanks!!

Oct 06, 2010 | 2000 Chevrolet Blazer

2 Answers

Heater door clicks all the time when car is running on 93 town ca


Check the blend door and other actuators. May be disconnected.

Mar 04, 2010 | 1993 Lincoln Town Car

2 Answers

1999 Silverado - cannot get the temperature to switch from cool air to warm air when turning the knob to heat.


The temp blend door, or blend door actuator may be faulty. You can check this by watching the movement of the blend door actuator while you turn the temp selector knob. If the actuator is working, then it may be the blend door, or blend door lever broken. If these are ok then the control head may be faulty.

Oct 18, 2009 | 1999 Chevrolet Silverado 1500

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