TheDirtyJeep401 Posted December 20, 2013 Share Posted December 20, 2013 I was told that there is a vaccum line that is used to open the dash vents, anyone have a pic of where it is suppose to be? Trying to fix the vents to where they don't only come out the defroster. It's an 86 2.5 thanks in advance. Link to comment Share on other sites More sharing options...
cruiser54 Posted December 20, 2013 Share Posted December 20, 2013 The line runs from the firewall to a reservoir in the passenger side front bumper. Link to comment Share on other sites More sharing options...
TheDirtyJeep401 Posted December 20, 2013 Author Share Posted December 20, 2013 I think I found it, because there is no hose. Do they make replacements or do I have to make my own? Thanks for the help cruiser Link to comment Share on other sites More sharing options...
cruiser54 Posted December 20, 2013 Share Posted December 20, 2013 Be more specific. No hose from the firewall to the "ball"? Link to comment Share on other sites More sharing options...
TheDirtyJeep401 Posted December 20, 2013 Author Share Posted December 20, 2013 There is no hose running along the firewall to the reservoir behind the bumper. Link to comment Share on other sites More sharing options...
cruiser54 Posted December 20, 2013 Share Posted December 20, 2013 But the reservoir is there? Link to comment Share on other sites More sharing options...
TheDirtyJeep401 Posted December 21, 2013 Author Share Posted December 21, 2013 Yes Link to comment Share on other sites More sharing options...
cruiser54 Posted December 21, 2013 Share Posted December 21, 2013 I don't know how to post photos up here but I have a diagram of that system. I just sent it to hornbrod. Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 21, 2013 Share Posted December 21, 2013 Link to comment Share on other sites More sharing options...
cruiser54 Posted December 21, 2013 Share Posted December 21, 2013 Thanks Don!!! Link to comment Share on other sites More sharing options...
TheDirtyJeep401 Posted December 21, 2013 Author Share Posted December 21, 2013 I have 2 hoses that are coming off of the reservoir, one going in right next to the blower, and one going through the firewall, I'll post pics tomorrow. Thanks for the diagram too, I'll be needing it. Link to comment Share on other sites More sharing options...
HOrnbrod Posted December 21, 2013 Share Posted December 21, 2013 Also make sure the vacuum check valve(s) are there and orientated in the proper direction to allow the intake manifold to "suck" vacuum. Depending on installed equipment that use vacuum to function (cruise, HVAC, cooling, etc.) there could be up to three check valves. They do go bad, and can be tested with a vacuum pump. Or do what I do, suck and blow using your built-in vacuum body pump. Link to comment Share on other sites More sharing options...
GoyoIII Posted December 31, 2013 Share Posted December 31, 2013 I'm having a similar problem. When I'm accelerating outside air start blowing. This happens with or without the the a/c on. Any advice? Link to comment Share on other sites More sharing options...
ParadiseMJ Posted January 1, 2014 Share Posted January 1, 2014 On the firewall there are two small hoses coming OUT of the firewall. One is pink(ish) the other is black. The black one is the small one on the vac ball. The pink one goes to the heater valve (if equipped). The fat black hose on the vac ball is the SOURCE vacuum. The small one is the HVAC/CAD line. A leak (crack/break/rub/disconnected line) will cause problem with the blend doors and possibly the cruise control. Replace....as opposed to repair these bulk type lines...they're dirt cheap. Link to comment Share on other sites More sharing options...
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