Originally Posted by GBRG07
Locking gas caps are often an issue.
If not cap have a good look at lines in eval system for cracking on rubber hoses.
Have seen filler neck hose clamps a little loose and leaking.
For a small leak you could try and isolate sections and pressurize with a few pounds air pressure and use soapy water to look for leaks.
Good Luck with it.
I think you might be on the right track!
I went out and disconnected some lines -- before the charcoal canister -- at the back of the vehicle. I did a vacuum pressure test and it failed. so have to keep moving back til I find a leak.
I don't know if a vacuum test is a simple substitute for a pressure test so not sure if I was doing the right thing. But good suggestion on using air pressure and soapy water to find the leak.
Any suggestions welcome!