Focus Fanatics - View Single Post - IAC valve plunger.....
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Old 01-23-2013, 12:33 AM   #6
Focus Addict
Join Date: Sep 2007
Fan#: 50210
Location: SoCal, CA
What I Drive: 2000 SE Wagon

Posts: 1,211
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Took it apart.

Normal state is slightly open.

Did you know that it's vacuum operated....

Sort of looks like this inside:

Vacuum on the air flow outlet side (down center of plunger to left side of diaphragm) makes the plunger follow the solenoid.

Hopefully I'll get it back together and working...

Got pic from here:
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