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2001 Chevy S-10 No warm air to floor when selector switch I

Tiny
S10GEH
  • MEMBER
  • 2001 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
No warm/hot air is sent to floor when selector switch is set to floor, instead it come out the defroster vents. Warm air will come out the upper vents and defroster vents when the selector switch is set accordingly.
Monday, December 7th, 2009 AT 12:27 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
What you are looking for in this case is a vacuum leak. The vent doors are actuated by vacuum. Check under the dash and hood for vacuum leaks. NOTE: Sometimes, with the engine running, you can actually hear a hissing sound from a leak. Check that out to see if it helps.

Let me know what you find.
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Friday, December 11th, 2009 AT 10:47 AM

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