1994 Chevy S-10 air conditioner and bi level heater vent

1994 CHEVROLET S-10
12,000 MILES • 6 CYL • 4WD • AUTOMATIC
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HENRY HOWARD
  • MEMBER
  • 1 POST
The top vent has no air coming out on either the air conditoner or bi level heat.
Apr 28, 2009 at 10:53 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
The vents are actuated by vacuum. Check for vacuum leaks under the dash and check for vacuum leaks from supplies under the hood.
May 2, 2009 at 6:49 AM
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