1999 Mercury Cougar defrost

1999 MERCURY COUGAR
95,000 MILES • 6 CYL • 2WD • AUTOMATIC
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RJT77272
  • MEMBER
  • 1 POST
My air and heat only come out of the defrost. what has to be done to repair? Is it a costly job? Thanks for your help
Aug 27, 2009 at 7:39 PM
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BLUELIGHTNIN6
  • ✓ASE Certified Mechanic
  • 16,542 POSTS
  • ASE Certified Mechanic
Check for a vacuum leak either under hood or under dash. Check the operation of the vacuum controlled motors under dash .Check the operation of the selector switch. Defrost is the default position for the system so if there is a problem you will still get air at the windshield.
Aug 28, 2009 at 12:43 AM
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