WHY ****S TURN BUT WONT SHUT OFF THE VENTS

  • Tiny
  • marvey
  • 2002 Dodge Ram
  • V8
  • 2WD
  • automatic
  • 182,000 miles

Heater ****s wont go on defrost stays on vent

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Monday, September 26th, 2011 AT 12:41 AM

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  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,409 posts

Check for vacuum leaks under the dash and the supply line from the switch to the engine. The air flow actuators are run by vacuum. If there is a leak, they won't change direction.

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Monday, September 26th, 2011 AT 12:43 AM
  • Tiny
  • marvey
  • Member

Thankz

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Monday, September 26th, 2011 AT 12:52 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,409 posts

Let me know what you find. If you're lucky, you may hear a hissing sound if you start the engine. They are a pain to find sometimes.

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Monday, September 26th, 2011 AT 1:10 AM

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