venting problem

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venting problem - 1/3/2008 12:43:19 PM    94blueknight Posts: 1520 Joined: 12/31/2007 From: Wisconsin Status: offline so i'm having a venting problem i dont get anything out of my vents on the dash at all. it doesnt matter what venting optioin i put it on (a/c, heating, defrost, etc) it only comes out the floor vents and the defrost vents on top of the dash. so any imput would be helpful! _____________________________ CHECK IT OUT its ME! Post #: 1

RE: venting problem - 1/3/2008 12:54:29 PM    swartlkk Posts: 15276 Joined: 5/1/2005 From: Waterloo, NY Status: offline Common issue.  Seems you've lost the vacuum source to the HVAC module in the dash.  When no vacuum supply is present, the actuators go to their neutral state which happens to be floor & defrost. *Moving to 1st Gen Tech* You should get a better response in the mechanical & maintenance section.  I'm not sure if I posted the vacuum routing for a 1st gen before, but I know I did for the 2nd gen non-auto hvac system.  That might help...  Typically this is caused by a faulty vacuum switch on the transfer case which can result in transfercase fluid being sucked into the HVAC system!!  What a mess that is to clean up! _____________________________ Kyle- 04 Rainier My Restoration Projects Please Do Not PM for Tech Help (in reply to 94blueknight) Post #: 2

RE: venting problem - 1/4/2008 2:48:21 PM    94blueknight Posts: 1520 Joined: 12/31/2007 From: Wisconsin Status: offline where is the vaccum hose that connects to the HVAC module? _____________________________ CHECK IT OUT its ME! (in reply to swartlkk) Post #: 3

RE: venting problem - 1/4/2008 3:55:04 PM    swartlkk Posts: 15276 Joined: 5/1/2005 From: Waterloo, NY Status: offline It runs from the vacuum switch up through the firewall to the back of the HVAC switch. _____________________________ Kyle- 04 Rainier My Restoration Projects Please Do Not PM for Tech Help (in reply to 94blueknight) Post #: 4

RE: venting problem - 1/6/2008 11:53:38 AM    94blueknight Posts: 1520 Joined: 12/31/2007 From: Wisconsin Status: offline thanks for all the help!! i got it fixed turned out that a hose was disconnected at the T and the hose to the back of the intake was also disconnected so i connected them both and VENTS WORK!! so thanks for all the help!! _____________________________ CHECK IT OUT its ME! (in reply to swartlkk) Post #: 5

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