1994 Chevy Beretta Heat won't switch from vent to defrost

1994 CHEVROLET BERETTA
83,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SANDYSTAHLBERG
  • MEMBER
  • 1 POST
When changing the dial switch for vent, floor, defrost, heat does not come out separate places, comes out everywhere at once. It is the right temperature, but does not defrost well because heat mostly comes out vents in front.

Any ideas? Thanks.
Nov 30, 2008 at 5:00 AM
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BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
Hello
Thanks for the donation.

You may have a faulty control switch. Test for power at switch. Could also have a vacuum leak. Check all vacuum hoses for any signs of cracks/loose fits/leaks.
Nov 30, 2008 at 5:37 AM
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