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Ford
F-250
Climate Control
Vent
Replace/Remove
A/C vents close after a short time
1999 FORD F-250
194,000 MILES • 7.3L • V8 • 4WD • AUTOMATIC
LAWRENCE POWERS
MEMBER
1 POST
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A/C will blow cool air for about ten minutes then the vent will close for about five minutes. I changed the vacuum pump and it still does it.
Jun 22, 2018 at 6:36 PM
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ASEMASTER6371
CERTIFIED EXPERT
52,796 POSTS
Good morning.
Do any of the other doors close when this door closes?
I attached a vacuum chart for you. It may be the vacuum motor itself.
The motor is behind the glove box. Make sure it has vacuum to it to work.
Roy
Images (Click to enlarge)
Jun 24, 2018 at 8:09 AM