1993 Oldsmobile Cutlass hey

1993 OLDSMOBILE CUTLASS
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SHERRIG26
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  • 1 POST
Air Conditioning problem
1993 Oldsmobile Cutlass 6 cyl Front Wheel Drive Automatic

my airconditionong is coming through my defrost and not through my vents. what could be the problem? thank you
Jun 20, 2009 at 12:30 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
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The air is directed by vent doors that are actuated by vacuum. Chances are there is a vacuum leak under the dash or from the supply at the engine. Check under the dash first. With the engine running, you may hear a hissing sound to indicate there is a leak.
Aug 10, 2009 at 12:44 AM
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