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2011 F150 possible AC issue

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Old

Aug 5, 2017 | 09:15 PM

#1

philwill30

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2011 F150 possible AC issue

Hey guys, you all helped me fix my last problem, which was a leaky rear window, I hope you can help again. In my 11 F150 XLT, whenever I turn the Recirculate on with the main vents, my main vents seem to stop blowing. 2-4 work, but no 1. has anyone else encountered this and is there a fix? Thanks!

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Old

Aug 6, 2017 | 10:59 AM

#2

alloro

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Does it end up blowing out the defrost? If so switching to recirculate may be creating a vacuum leak.

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Aug 6, 2017 | 12:14 PM

#3

530ktmpilot

Senior User

Joined: Oct 2015

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Check to make sure the vacuum hose hasn't become disconnected to the heater core shutoff valve. Mine has come loose a couple of times causing irratic vent control due to the vacuum leak

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