1987 Chevy Celebrity Sticks in defroster Mode.

1987 CHEVROLET CELEBRITY
89,089 MILES • 4 CYL • FWD • AUTOMATIC
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BYOUNGER
  • MEMBER
  • 1 POST
I have a 1987 Chevy Celebrity that sticks on defroster. Sometime I can here the door close & change air flow to floor. Doesn't anyone have a suggestion.
Sep 4, 2010 at 5:38 AM
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MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
Check for a vacuum leak, the supply line from the manifold, to the control unit has a leak, or the reserve tank.
Sep 4, 2010 at 5:54 AM
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