Question about 2005 Ford Crown Victoria

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TEMPERATURE ACTUATOR MOTOR DOESN'T MOVE NO HEAT

Temperture doesn't change hot or cold. removed actuator motor and motor does not turn. Replaced with a new actuator from Ford, still doesn't work, changed control head in dash still doesn't work. This car is an old police cruiser it has manual temperature control not EATC

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Blender door broken

Posted on Apr 22, 2009

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2 Answers

Heater doesn't get hot on 96 chevy truck. Blows good, just cold. Replaced thermostat, flushed radiator. Any ideas?


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.

Dec 06, 2012 | Cars & Trucks

1 Answer

My 95 chevey tahoe is blowing hot air and the heater is not even on,what could be causing this?


Most likely, you have a defective temperature actuator. (See diagram below) You can see/get to the actuator by removing the glove box assembly. Turn the ignition on and change the temperature control from hot to cold and/or cold to hot. Watch the white ring on the actuator (See picture) and see if it turns. If it does not turn, replacing the actuator is very likely to fix your problem. (There are other things that can cause this to not work, but most of the time, it is the actuator itself)

If the actuator is working and the temperature coming out the vents does not change, then the blend air door is broken. (This is the part that the actuator moves.) This is also fairly common and requires removal of the entire HVAC housing assembly to repair.

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May 12, 2012 | 1995 Chevrolet Tahoe

1 Answer

My 2005 2500 HD Duramax is not getting any heat inside cab. Engine is not running hot and coolant level is fine. Turned the heater controls up and down fast today and ot some heat for a while.


The temperature of the air coming out of the ducts is controlled by a door that moves between the heater core and the AC core, it is called the "blend" door for obvious reasons as it blends the hot and cold air streams to give the desired air temperature at the dash vents. The door is controlled by a small gear drive DC motor called the blend door actuator, what happens in most case is the actuator is damaged by a blend door that is warped from heat being hard to move or not moving at all which is the case with your truck. The blend door and its actuator should be replaced as one repair, the dash must be removed from the truck to access the air ducting that contains the blend door, you absolutely need a service manual to complete this job, it takes about 10 hours.

Feb 09, 2012 | 2006 Chevrolet Silverado 2500HD 2WD

5 Answers

My 1997 ford f150 heater will not blow hot air. i have replace the switch that controls the hot and cold air. i do not know what else to do. i do not heat any vacuum noise when i switch it to the heater or...


first, check under te hood to see if the heater core water hoses are hot going in and coming out. If hot going in but cold coming out, water valve (if you have one) may not be working.
------------------------------------------------------------------------------------------------
Control System Outputs
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by vacuum control motors. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
For more information on the control components Section 412-04 .
-------------------------------------------------------------------------------------------------------------------------------------
Air Management Doors
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by a vacuum control motor. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
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Section 412-04: Control Components - Climate Control 1997 F-150, F-250 Workshop Manual
REMOVAL AND INSTALLATION A/C Electronic Actuator
Removal
  1. Remove the floor duct panel.
    • Remove the two plastic push pins (one each side) and release the expander clip.
  1. Remove the RH instrument panel brace.
    1. Remove the lower nut.
    1. Remove the upper bolt.
    1. Remove the brace.
  1. Remove the LH instrument panel lower nut and position brace out of the way.
  1. Disconnect the vacuum harness from the vacuum actuator.
  1. Remove the floor duct.
    1. Remove the two screws (one each side).
    1. Remove the floor duct.
  1. Remove the panel/floor door vacuum control motor.
    1. Disconnect the vacuum line connector.
    1. Remove the two panel/floor door vacuum control motor screws.
    1. Slide the rod out of the door and remove the panel/floor door vacuum control motor.
  1. Remove the electronic actuator.
    1. Disconnect the electrical connector.
    1. Remove the three screws.
    1. Pull down to release the actuator shaft and remove the electronic actuator.

Jan 24, 2011 | 1997 Ford F150 Regular Cab

2 Answers

I have a 2002 Jeep Liberty Limited, 3.7 L motor. The heater will not blow hot air. The A/C and fan work well. When I turn the temperature dial to hot, there is only cold air coming out. Can you assist me?


Jeeps are notorious for having broken temperature control (Blend Air) doors. A malfunctioning Blend Air Door actuator probably caused it to break. The dash will have to be removed to replacethe door and the door actuator.

Jan 16, 2011 | 2002 Jeep Liberty

1 Answer

Driver side heat blows cool air passenger side blows hot air. Both thermostats are on hot, recently had no heat flushed radiator and got half heat


Hello, this is cused by the drivers side temp door actuator. there are two electric motors that move the temp doors from cold to hot. there is one on the drivers side and one on the passenger side. you will need to replace the one for the drivers side.

  • Remove the left instrument panel (I/P) insulator.
  • Remove the knee bolster bracket bracket. Disconnect the electrical connector from the left air temperature actuator.
  • Remove the mounting screws from the left air temperature actuator.
  • Remove the left air temperature actuator.
  • Nov 06, 2010 | 2004 Chevrolet Monte Carlo

    2 Answers

    My heater doesnt blow hot air when i turn the heat on it is cold. when i change the knob from hot to cold there is do difference. also my temp gauge stays where it needs t be right in the middle. help i...


    Suspect it is the blend door actuator, but please see my tip at http://www.fixya.com/cars/r6235876-no_heat_fan_blowing_cold_air . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info. Below are instructions for replacing the blend door actuator, but don't replace it unless you're sure it's bad. Autozone has it for $36. First, take it out, plug the connector back in and see if it turns when you change the temperature control. If not, the problem can be in the controller or the actuator. If it is clicking, the problem is stripped gears. If it isn't doing anything, you can check for voltage at the connector with a voltmeter. Connect the black meter lead to a good ground point and probe the connector terminals with the red lead while changing the temperature setting.


    Blend door actuator removal and installation:

  • Remove the fuse labeled HVAC CTRL (BATT).
  • Remove the left closeout panel.
  • Remove the knee bolster.
  • Remove the air temperature actuator screws.
  • Remove the air temperature actuator.
  • Remove the air temperature actuator wire harness connector.

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  • Fig. Air temperature actuator removal
    To install:

    1. Install the air temperature actuator wire harness connector.
    2. Install the air temperature actuator and tighten the mounting screws to 13 inch. lbs. (1.5 Nm).
    3. Install the knee bolster
    4. Install the left closeout panel.
    5. Install the fuse labeled HVAC CTRL (BATT).

    Oct 31, 2010 | 2004 Chevrolet Malibu

    2 Answers

    Problem: Ford Windstar SE, 3.8L V6, 1999, front seat heat/defrost is alway cold with engine warm and heater turned on. Symptoms: 1) When (engine is warm and) front seat heat temp slider is moved from...


    I would think the door you hear flapping is the door that controls the airflow across the heater coil - and the fan keeps blowing the door closed, preventing the airflow from going across the heating coil. I don't know whether this vehicle is vacum controlled or cable controlled - so either it's a disconnected cable, or a leaking vacum line.

    Mar 10, 2009 | 1997 Ford Windstar

    4 Answers

    I have a 2000 ford windstar no heat still


    My 99 windstar did this too. It was the blend door that the actuator motor goes into was broke. When you pull the actuator out look into the hole and see if you see a d shape piece coming out of the box if it is not d shape it is broke check out this site great photos

    Feb 27, 2009 | 2000 Ford Windstar

    1 Answer

    1997 F150 heater problem


    your problem is caused by the air temperature control blend door actuator motor being defective, the little motor moves the door that gives either hot air or cold air or a blend of the 2.

    Feb 21, 2009 | 2004 Ford F150

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