Fan won't switch from defrost to other settings - Ford Powerstroke Diesel Forum
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Old 04-12-2013, 06:55 PM
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Fan won't switch from defrost to other settings

Hey guys,

My interior fan won't switch from defrost to any of the other settings. Is this just an electrical issue? Any idea how to fix?

Thanks!
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Old 04-12-2013, 07:30 PM
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Sounds like you have a vacuum leak.

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Old 04-12-2013, 08:01 PM
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Quote:
Originally Posted by F250419 View Post
Sounds like you have a vacuum leak.

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^ this!



123456789
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Old 04-13-2013, 05:10 AM
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Thanks. How do i fix this?
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Old 04-13-2013, 07:19 AM
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Check the small white vacuum line in the engine compartment (it likes to rot out). Cheers!
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Old 04-14-2013, 10:44 AM
Can you hear the derail??

 

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That small white tube is for ac/max ac, check your vacuum pump
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Old 04-14-2013, 12:09 PM
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Stupid question, but where is the vacuum pump and what does it look like?
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Old 04-14-2013, 01:04 PM
Can you hear the derail??

 

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its typically silver in color and just under a/c compressor, on the right side of the engine as your looking at it
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