Arrow points to where it is cracked
My hose leading from the rear PCV elbow on the valve cover to the intake manifold is cracked thus creating a vacuum leak. It is cracked where the hose/ fitting meets the intake manifold. I’ve been trying to find parts online to replace and fix my rough idle but I come up empty handed. Any help/ links appreciated I am a novice.

 

So your saying the hard plastic line is cracked?
I'm pretty sure that guys have just you hose to fix that.
Boneyard would be your best/cheapest option if I am wrong about the hose.
Think this is what you are looking for new.


I just don't see spending the money on something this simple.

 

Thanks for the reply. I need to be more clear. The end where it goes into the intake manifold is cracked the rubber part? Not the plastic line.

 

Piece of hose might work there to.
The problem that might come up is that the diameter of the hard plastic line is too much different then the nipple on the intake manifold.
To much to seal properly.
This is mostly likely a Dorman product that every auto parts store has on their help wall.
Something like this:


Might even be that.
It does not have to be specifically for the Jeep. Just needs to work.

 

Ran into this on another vacuum fitting with a check valve at rear of manifold. Match a new rubber line to the larger diameter and put shrink tubing on the smaller diameter part until you get a snug fit on rubber tube.

Rubber line going into manifold has 2 different id, cracked. Line traces back along firewall to passenger side and another check valve then into air box area.

 

What about just sliding a section of rubber hose with an internal diameter equal to the external diameter on the broken hard piece.

 

He said it was the rubber later. The problem with some of them is that they have different internal diameters from one end to the other. Someone posted some of that rubber line is available. On my 1996, Oreilly didn’t have that so I used shrink tube to tighten up the loose end.

Might have misread your intent there.

Hard to find a piece of rubber hose that is thin enough to slip over the thin one and still make it into the slightly larger OD of the big one.

 

Something else that might work, clean the hose real good with something like CRC plastic/rubber safe electric parts cleaner, and put heat shrink tube over it. Shrink it with parts installed. Can even use 2 layers.

Still recommend using a rubber hose and making the IDs match though.

 

get the hose ends on rockauto