Question about 1992 Acura Legend

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Air blend door actuator

Cold air all the time

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  • Acura Master
  • 20,706 Answers

There is an order. (check fuses first, all the time,every time)
1: engine attains 180F temp or more and holds there. all the time hot.
2: the water valve is open fully and actually flows hot water to the core.
the dash temp, lever is a cable to valve, does valve move from min to max, via lever>?
3: blower works, at least on high.
4: then doors, most these cars have blend door motors. and the tests are unique to maker and year,model. the FSM covers this 100%

this system varies by, A/T or M/T tranny, coupe or sedan
and CLIMATE CONTROL options.
the climate control system is complex with 3 motors.
3 damper control motors,
1: Recirc
2: fresh air.
3:MODE (my guess this fails)

to see it , go to alldata.com and read HVAC section , fresh air delivery systems.

better is THE FSM, as it shows how to test these motors.
step by step.

Posted on Dec 27, 2013

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1 Answer

No cold air inside the car


try rechecking the blend door actuator and its connections, fuse, etc. also if your AC system is overcharged it will blow warm air.

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You have a problem with either the blend door actuator of the door itself.

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Did you check the blend air door actuator for BOTH sides or just one? The only things that can cause the symptoms you are descibing is a blend air door actuator that is not working or a broken blend air door.

Although there are several things that can cause the actuator to not work, it is usually caused by a failure in the actuator itself.

If you can actually see the actuator moving when you change the temperature setting, then the door itself is broken....pretty "cut-and-dry".

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I'm having the same problem except on mine it's the driver's side that's blowing cold. Do you have the pictures in a finer resolution? I can't make them out and when I zoom, they are too grainy. Does the replacement require removing the dashboard? What's the general cost of the acuators? Are they readily available at like NAPA or other parts stores?

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Where is the driver side blend door actuator on a 98 Seville STS?


I believe that the right side has a blend door actuator, and the left side or driver side just gets air from the regular flow from the programmer and vacuum motors.

Dorman/Blend Door Actuator
Part Number:
604-106
btn-view-details.png Price: $139.99
Notes: Dorman-OE SolutionsTemperature door. Right

Oct 29, 2010 | 1998 Cadillac Seville

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Heater blows cold air


Hi!
If the Temp. Selector Control is set to Heat and blows cold air, your Blend Door Actuator may be stuck or it is inoperative. The actuator is not fixable, if it fails, it must be replaced. Follow the instructions to remove and replace it.
  1. Disconnect battery negative cable from battery and properly isolate to prevent accidental reconnection.
  2. Remove the instrument panel.
  3. Disconnect the electrical connector from the blend door motor/actuator.
  4. Remove the four screws holding the blend door actuator to the plenum.
  5. Remove the temperature blend door actuator.
BLEND DOOR ACTUATOR CONNECTOR e8349ea.jpg

BLEND DOOR FASTENING SCREWS 9744710.jpg

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Oct 07, 2010 | 2003 Mercury Grand Marquis

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2003 mercury grand marquis LS heater does notr blow hot air, blower blows but cold air comes what is the problem


The blend door is stuck in cold position. That usually happens because the blend door actuator has failed.

You will need to test and replace the blend door actuator.

To replace the actuator you will need to take apart the dash and remove completely the instrument panel,d isconnect the connector, remove the four screws, remove the temperature blend door actuator and replace it.

The replacement is not a job for beginners, since you have to take apart the dash to access the actuator.

Regards.


Nov 18, 2009 | Mercury Grand Marquis Cars & Trucks

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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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