Question about 1996 Ford Explorer

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My 1996 Ford Explorer heater control seems to be stuck somehow. It constantly blows hot air, even when the control knob is turned to the coldest position there is no change in temp. I have checked out the switch and the white box on top of the heater box and they are working. I can hear the flap moving inside but I can not tell if it moves enough. There is very little room above the white actuater box and I don't know how to check it out further. Can you help ?

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Since you're talking about the white box it sounds like you're familiar enough to proceed a bit further. Remove the three screws (8mm head) and lift the blend boor actuator off (white box). Manually move the blend door and see if your temp changes. These blend doors have plastic gears inside that strip and don't allow full movement. If you have a change in temperature then replace the actuator.

Posted on Apr 04, 2011

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No heat 1996 ford explorer


i dont think the blend door pumps are electronic rather work with vacum so my best bet is to check that ure blend door aint broken best way u should hear a bump when u turn cold hot knob from end to end, and that ure main vac line on the engine compartment aint broken and even if electronically control that should be ure second step

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OK, a vacuum controlled blend door is the problem.


REMOVAL & INSTALLATION


See Figure 1



0996b43f8020d980.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: Plenum door vacuum motors

  1. Disconnect the vacuum hose at the motor.
  2. Remove the 2 motor attaching screws.
  3. Rotate the assembly so that the slot in the bracket is parallel to the tee-shaped end of the door crank arm, and pull the motor and bracket off the crank arm.
  4. Installation is the reverse of removal.
--- Search for other vacuum motors under the dash to see if the vacuum hoses have somehow deteriorated or become detached. --- Try to look up your vehicle on autozone.com for other vacuum motors under the 'heater' section of the 'chassis electrical' section of the 'repair guide' after selecting your 1996 Ford f250 crew cab vehicle. http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?pageId=0996b43f8038ebd8

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The temp door actuator motor has went out ,it is behind the glove box,on top of the blower box,toward the center of the vehicle.

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The dealer quoted me 750 dollars to fix this issue and I found out that it's a common failure for this year. I fixed mine virtually for free but it took some tools and about an hour of my time.

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