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1997 Dodge Van Broken HVAC vacuum line

Tiny
SEKSAY1
  • MEMBER
  • 1997 DODGE VAN
  • 5.9L
  • V8
  • RWD
  • AUTOMATIC
  • 140,000 MILES
Coming out of the firewall behind the a/c control panel, there are four vacuum lines, two white and two black. One black and one white go to opposite sides of what appears to be a valve behind the passenger headlight. The other white one goes to another valve on what appears to be the heater hose. The remaining black one is broken with around 1' of length coming out of the fire wall. Where should it go?

Air only blows out of the defroster vent and will not blow from the dash or floor vents. I'm hoping this broken vacuum line is the cause.

Thank you.
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Monday, June 2nd, 2014 AT 10:13 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
That is the cause. Chances are the one that was broken is the supply hose from the engine.
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Monday, June 2nd, 2014 AT 10:45 AM
Tiny
SEKSAY1
  • MEMBER
  • 4 POSTS
Removed the dog house, looked around and found the supply line hanging off the side of the engine. Repaired the connection and the vents are working properly now! Thank you for the helpful input!
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Monday, June 2nd, 2014 AT 2:03 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
You're welcome. I'm glad you found it that quickly.

Let us know if you have other questions in the future.

Joe
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Monday, June 2nd, 2014 AT 5:45 PM

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