Question about 1995 Chevrolet Corsica

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Heat works on dash, but will not switch to defrost or floor

On my 1995 Corsica the heater fan and flow is good. It will not change from the dash to the floor or defrost.

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  • Anonymous Jan 30, 2009

    i got the exact same problem..heat comes out fine I just cant direct it.

  • Ken Koonce Sr. Mar 02, 2009

    "Heat works on dash, but will not switch to defrost or floor"
    2002 chev s-10 4x4 extended cab


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  • 247 Answers

It sounds like you have a vacuum leak in the line. I would suggest taking out the heater controls and following the lines until you get a the main junctions which might just be behind the glove box. most likely one of the lines came off and all you have to do is replace the hose line.
hope this helps you and let me if you need anything else

thanks tom

Posted on Dec 19, 2008

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