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rolls
New User
Jul 22, 2007, 8:17 PM
Post #1 of 2
(1792 views)
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2004 silverado heat/cold comes out a/c vents only,nothing from floor or defrost vents
(This post was edited by rolls on Jul 22, 2007, 8:20 PM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jul 23, 2007, 4:02 AM
Post #2 of 2
(1787 views)
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Re: heat/air problem
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Hmmm? The default when vacuum is lost to control diverter doors is defrost ducts. This could be a stuck diverter door or the control head (you don't want either of those problems) but I would check out vacuum source makes it from storage ball under the hood to the distribution box first,
T
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