Question about 1997 Ford Explorer AWD

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1997 explorer a/c blend door ?

1997 ford explorer with automatic temp control, I've replaced the blend door actuator but a few minutes after turning the a/c or heat on air will stop coming out the vents. The blower can still be heard working. The automatic control module under the radio was also replaced. I get no code errors when running the EACT codes. The air does not default to the defroster when is stops coming out of the floor or dash vents. It will go to defrost when I select it.

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May possibly have a vacuum leak.

Posted on Apr 07, 2010

  • 4logick333 Feb 07, 2012

    I have this problem on my 97. The heat would work intermittently and on really cold days was horrible. To fix go behind the glove box and locate the blend door actuator unit. It will take a tiny ratchet to remove the screws on top. This is a time consuming and scrapped hands effort. After removing find an allen wrench that fits inside of the white square slot on top. This is the pivot for the blend door. You will have to sacrifice the allen to become your new handle lever for future use. Replace module behind glove box. Remember that the handle should face towards the rear of the car. When you lose heat all you have to do is slip your hand on top of the box and turn the handle from left to right.

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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

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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...


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.

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Clicking sound is your blend door actuator stripping it's gears and failing to open the door that directs the blower air through the heater core. Follow the sound to the actuator and remove it. Install a new one. You may have to remove some panels to get to it. The part is shown below and costs $32 at autozone. Please let me know if you have questions.

jturcotte_42.jpg

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The air from the vents is either hot or cold not much in between. This is on a 1998 Explorer. When on automatic the hot air comes on at about 72 degrees and will not cut off. Then when you turn it down it...


sounds like a blend door concern

the blend door is controlled by the EATC

inside the blend door is a potentiometer
I've seen this fail often

however, you will need to follow a few specific tests to correctly diagnose

good shotgun guess is the blend door actuator but I don't like to throw parts at it unless I know for sure!

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HOT AIR ALWAYS


this problem is almost always caused by the air temperature control blend door being warped and stuck or by the electric actuator that moves it, the common issue is the blend door actuator. To replace or repair this part requires the removal of the entire dash assembly.

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u will need to replace the air temperature control blend door actuator motor, this will require removal of the dash assembly, how do I know this? I am a Ford dealer tech and have done dozen's of these.

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