1999 Chevy S-10

Tiny
#1
  • MEMBER
  • 1999 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
  • 135,000 MILES
Air blows thru dash vents only. Will not blow thru defrost or floor vents
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Sunday, October 25th, 2009 AT 4:05 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
You are looking for a vacuum leak. The vent doors are actuated by vacuum. Check under the dash and the hood for leaks. Many times, you will hear a hissing sound where it is leaking from.

Let me know what you find.
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Thursday, November 12th, 2009 AT 1:48 PM

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