Solved Blend door actuator

[Georgia_Birdman]

I have a 98 Explorer Eddie Bauer with EATC. I have the suspicion that the blend door actuator is bad. However, it would help if I knew the pin-out of the eight-pin connector. If anyone has that, please post it in your reply.

 

[Mbrooks420]

Free wiring diagrams can be found here in the auto repair referencecenter:
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[Georgia_Birdman]

This is exactly what I was looking for!!! Thanks a bunch. One more thing... Do you have the vacuum diagram for the same system?

 

[Georgia_Birdman]

View attachment 162629

I cannot find this diagram on the site you listed above. Where is it?

 

[Mbrooks420]

It looks like they changed what auto reference they hadn’t. There are electrical diagrams still, but they aren’t the same, and don’t seem as thorough.

 

[Turdle]

This may help you. The main vacuum diagram is on a label under the hood on the core support

The hvac vacuum is in here

How to: - 2nd Gen NO AC ( or heat) FROM VENTS!!! A "How to" what to look for thread

 

[Spudhut]

Pull blend door actuator (somewhat easy) and/or use an inspection mirror to watch the motor.

Stripping of the small gears in the actuator are common.

What is your system doing?

 

[Georgia_Birdman]

I was able to pop it off the mounting bracket. It just snaps off. I took it apart and found some of the teeth broke off the small gear closest to the motor. I also removed the blend door itself via a very frustrating method. The upper pivot point was split in two where the actuator shaft connects. I bought a new dormandorma from NAPA that has a metal pivot point. I tried for two hours and could not get it in. Had my mechanic install it and a new motorcraft actuator. Problem solved. Everything works great.

 

[Mbrooks420]

I always just cut the box to remove the door.

 

[Georgia_Birdman]

I did that, but I didn't cut the area where the pivot hole is. I could not get the new door in. I didn't want to force it and damage something.