air in defrost only. help!

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05-29-2006, 06:23 PM

acrete

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air in defrost only. help!

What would make my f-350 only blow air out of the defrost?? tried all controls
and the heat but only blows out of dfrost. Can anybody help me out here

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05-29-2006, 09:35 PM

Steina

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Defrost is the fail-safe position; sounds like you may have a major vacuum leak.

Welcome to FTE!

Steve

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05-30-2006, 08:53 AM

projectSHO89

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This is an extremely common discussion topic.

Page back a few weeks for previous discussions or take advantage of the SEARCH tool keywords "+defrost +vacuum".

Steve

Last edited by projectSHO89; 05-30-2006 at 09:05 AM.

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