I'm trying to find the size of the fuel tank vent hose that connects to the charcoal canister. On my 87 cherokee 4.0 . Went to napa but they did not know what size it is. I took the old one off (it was crack)so i could show them. But i seem to miss place it somewhere.And now i can't find it. Any help i would appreciate it. Thx.

 

Measure the plastic nipple it goes on to. If it's hard to measure, find an open end wrench that fits nicely over it. Take the wrench to the parts store with you.