2000 Jeep Cherokee vent system

2000 JEEP CHEROKEE
120,000 MILES • 6 CYL • 4WD • AUTOMATIC
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BRYANKE
  • MEMBER
  • 3 POSTS
Hi, I have heat and airconditioning. When I turn the selector switch for floor or vents or defrost, nothing moves. Is there a fuse or a relay out that can fis this problem? THANKS
Nov 25, 2009 at 1:36 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
IT sounds like you have a vacuum leak. The vent doors are actuated by vacuum. Check under the dash for a leak and follow the source through the firewall to the engine. If you have the engine running, you may hear a hissing sound from the leak.

Let me know what you find.

Joe
Nov 28, 2009 at 2:05 AM