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Heater Control Problem

DJSCHWENKE

MEMBER
GMC

I have a problem with the heater control on my 1998 Chevy Malibu, 110K miles.
The air source always defaults to "outside" air no matter what blower position I choose (lower or defrost).
Might a switch be bad? Where is it located?

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Friday, May 12th, 2006 AT 9:09 PM

1 Reply

LOSONE

MECHANIC
1,616 POSTS

Look under the hood for the round black vacuum tank about the isze of a softball. Check the vacuum lines going in and out. Quite often the small plastic lines break and cause your problem

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Saturday, May 13th, 2006 AT 1:55 PM

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