hey guys I'm having an problem with my vacuum hose its all the way broken and now my cruise control stopped working and the ac is only blowing out of the defrost. i know this is coming from one of the vacuum hose just have and hard time trying to fix it or finding where i could get an replacement without having to go to the dealer cause we all know they are rip offs... any info would be helpful I'm in texas as the summer is here and its about to get hot...

Straight lengths of plastic tubing. Second time I've seen someone ask about these. Do not over think it.

Start at the vacuum line up by the AC bottle and trace it back to any broken pieces.

Several times I have accidentally pulled the line off of the vacuum pump while working on something else. You can use rubber vacuum line to splice a break in a pinch 

does anyone have pics of an diy diagram of making it on my own or the part number on where i could get it from. i having trouble finding them 

use the part number lookup tool we created

 

https://mopar1973man.com/cummins/articles.html/24-valve-2nd-generation_50/part-number-lookup-tool-2nd-gen-24v/

The diagrams in the fsm  and the descriptions in the parts manual are not helpful...  5/32" tubing and vacuum hose that fits 5/32 tubing is your friend. 

 

You have a funny connector or the vacuum pump.  (it is where the red cap in the picture of the pump and the power steering.  it connects to the hard tubing)   I have also attached a schematic of the vacuum hoses.  it is for a 4wd.  just ignore the lines going to the cad and transfer case on a 2wd. 

 

To find the position of the tee...  it is circled in red (sorry not my truck, just plucked from webz)  Mine is close to there and looks similar.   That looks like they have done some replacing already.

 

You should be able to get everything you need at one of the zones..... but a real parts store might be a bit more of a help. 

 

HTH

 

Hag

Hagar what i actually need is the rubber connectors that makes the tubes connect. you said i should be able find those at one of the zones......

The zones are the parts stores like autozone, advanced auto, some of the newer Napa's, some O'reillys....   They are like walmart (and Lowes), they might have it, but nobody really knows, don't know where it is and/or what it is used for.  but hey they have soft drinks and air fresheners.  (these are the places that need to know if it is an automatic and if it has AC and power steering to tell you what oil you need.)  

 

For tubing connectors, you are looking for a Dorman 47430 .   This is an assortment of different sizes (for straight connections).  But if they can guide you to that area, you may find other things etc that might work better.   They will be in "blister packs"  either in the Red HELP packaging or very close to that. 

 

Hope that helps!

 

Hag

Edited June 8, 20177 yr by Haggar

Air brake line is cheap and much more durable than cheap rubber vacuum hose. Really isn't much to the vacuum system. 

 

No you don't need dealer for any of that. Napa part store should have most everything you'd need for fittings and connector.

I have a broken vacuum line right above the stock lift pump on the firewall, I have been meaning to fix it, what all does the vacuum play a role in?  I am guessing mine has to do with the HVAC as my zones (Defrost to Face vents) takes FOREVER to change over..

@portlandareae28 hvac and cad if you have one, mine also operates exhaust break. 

It was hvac.  I am not familiar with CAD.  I fixed it tonight and now the vent changer does what it should.

For what it is worth I recommend just cutting the hard lines out.  Leave enough on the pump end to serve as a nipple.  Then  order some silicone line from McMaster-Carr,  Even vacuum hose from the parts store is better than the hard line.  Route the replacement line to the driver side fender behind the battery, fuse block, etc then across the firewall.  Those hard lines are asking for trouble as these rides age.  I always hated how the factory rant the hard line straight through the engine bay.  Always in the way.

There is a lot of options of hiding the tubing in different areas.