My 98 Cherokee limited I bought has some vaccuum line issues. Where the line runs to the can by the battery, about a 3 inch chunk has rotted away. It causes my interior air to only blow from the defrost vents, no cruise control, and rough idle when first started. My question is where do I find this vacuum line?

 

I had that same problem. What i did was i found some vinal hose that fit over the hard plastic line they used and slid it over the section that was rotted. Works like a charm. Np now.

Hope that helps.

 

yeah, it doesn't have to be a specific vacuum line. can be any rubber, plastic or vinyl hose. as long as it fits. you can get a dual nipple adapter to just splice into the spot that is rotted, if it's just one spot. or use 2 adapters to splice in a chunk of hose.
or, there is a T section near the firewall. you can replace the piece that goes from the canister to that T piece.