Question about 2004 Ford Expedition

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When I turn on the rear heater or air conditioner, I believe it is the actuator makes a clicking sound. I can see the clicking sound is the plastic sprocket skipping.

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  • Anonymous Mar 24, 2014

    would like to just disable the rear air conditioner

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Easy,your rear blend door actuator is bad. buy one and install it! no problem. it's right on rear plenum,just pull trim off and panel out and sneak it in there.

Posted on Jul 18, 2009

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Posted on Jan 02, 2017

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Have a clicking noise in the right rear panel of my 2006 Envoy xl. Have had a new battery installed and a new alternator. The noise stays on all the time when the key is turned on . HELP!


That is a electrically controlled actuator for the rear HVAC - heating ventillation an air conditioning system . Mode door or temp. door actuator . They are plastic an the gears wear an strip .
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In my 2007 gmc sierra, when I turn on the air conditioner it blows hot air as if the heater was on in all vents.


The temperature is controlled by the use of an air mix door that is operated by an electric motor/actuator. This door can be jammed or the actuator can be inoperative or have stripped plastic gears internally.

Aug 29, 2013 | 2004 Chevrolet Silverado 1500 Crew Cab

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Front and rear heaters blowing cold air,makes a clicking noise behind dash and rear left panel.


Sounds like the blend door actuator needs to be replaced. It controls the air tempature from the vents and is mostly plastic. They break often.

Jan 09, 2011 | 2004 Ford Explorer

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95 chev. pickup. Cool air comes out at floor. Cannot divert any air to the vents or defroster vent. Can feel warmth on the black plastic box like thing near the floorboard so I know there is warm water...


It sounds like the actuator that diverts the air may have gone out. I would suggest replacing the blend-door actuator so that your air will go to the right places. The blend door actuator shouldn't cost more than $150.

Dec 11, 2010 | 1995 Chevrolet Tahoe

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When I turn my air conditioner on, the air blows out on the dashboard for the windshield and not from the vents. What can I do??


The blend door actuated by solenoids may not be working correctly causing a/c cool air to come out of the windshield vents, rather than the regular front vents.

Defroster Valve Actuator 1996 – 1999 1996 – 1999 HVAC Actuators gm-10-00-1840.gif

To Remove:
  1. Remove the air distributor assembly.
  2. Unclip the defroster valve actuator from the air inlet.
  3. Disconnect the defroster valve actuator from the valve.
To Install:
  1. Disconnect the defroster valve actuator from the valve.
  2. Clip the defroster valve actuator from the air inlet.
  3. Install the air distributor assembly.
Heater/Bi-Level Actuator 1996 – 1999 1996 – 1999 HVAC Actuators gm-10-00-1840.gif

To Remove:
  1. Remove the air distributor assembly.
  2. Remove the clip and the screws that fasten the 2 halves of the air distributor assembly and separate the air distributor assembly.
  3. Unclip and disconnect the heater/bi-level actuator from the valve.
To Install:
  1. Connect and clip the heater/bi-level actuator to the valve.
  2. Fasten the 2 halves of the air distributor assembly together and torque the fasteners to 13 in-lbs (1.5 Nm).
  3. Install the air distributor assembly.
---
Removal & Installation Recirculation Actuator 1996 – 1999 1996 – 1999 HVAC Actuators gm-10-00-1840.gif

To Remove:
  1. Remove the left sound insulator panel.
  2. Disconnect the vacuum hose from the recirculation actuator.
  3. Remove the recirculation actuator from the valve.
To Install:
  1. Connect the recirculation actuator to the valve.
  2. Clip the recirculation actuator to the air inlet.
  3. Connect the vacuum hose to the recirculation actuator.
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Aug 13, 2010 | 1997 Buick LeSabre

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The rear a/c is making a clicking sound/2003 Lincoln Navigator


you have a bad blend door actuator the clicking sound you hear is the plastic gears inside it slipping the panels covering rear unit can be removed once removed cut a/c on once clicking starts you should be able to tell which one it is they are about the size of a cell phone usually twoo or three screws holding on to air box and one small electrical connector remove and call ford dealership with part# listed on the actuator and purchase new one these are not available aftermarket that i know of

Jul 30, 2010 | 2003 Lincoln Town Car

1 Answer

2004 Yukon. driver side air conditioner not working


you need to change drivers side temp door actuator then disconnect battery for 5 seconds and reconnect after changing the part, turn key on for 60 seconds with touching heater control to allow actuator to program and then it will work.

Sep 19, 2009 | 2004 GMC Yukon

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Air conditioner problem 2001 Dodge Pickup


Hello, It sounds like your hot/cold blend door actuator is either hanging up at times or it's loosing it's calibration range because it's starting to go bad. The ticking noise is most likely the actuator trying to close off the hot air port but is unable to stay closed allowing hot air to mix with the cold. If it's just a weak blend door actuator, it will act up more when the air is on full because it has more resistance due to air flow. If possible try to see if the times it acts up decreases when you start the A/C with low fan speed.

Aug 18, 2009 | 2001 Dodge Ram 1500 Truck 2WD

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Front air blows cold, rear air blows warm


I believe the rear A/C - HEATER unit is located under the right rear trim penel. Open the rear hatch and remove inside trim panel on your right side. There you will find an evaporator core and a heater core and a blower motor. Also an expansion valve / orfice tube. Have someone turn the HOT/COLD knob while you look at the motor that opens and closes the temp door located in the evap/heater box for the rear A/C-HEATER. This "motor" doesn't really look like a motor persay. It is about 1 1/2 inches thick and 3 or 4 inches square. If you look at the center of the motot there will be a white round piece of plastic that should be turning one way for heat and the other way for cold. If it's not turning check the plug with a test light to make sure you have power. These things are made of plastic and breake all the time. So if it is turning and you hear it "clicking" then the teeth are stripped or the gear is broken. The motors are not that expensive.(I guess because they breake alot). Hope this helps.

Apr 28, 2009 | 1995 GMC Suburban

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