Help , Need advise gas fumes under sink in cabin & cannot locate why ? any suggestions ? Only smells when under way
any help thanks >

I had a situation where I came home with very full tank of gas and slightly parked on hill... Sun came out and heated everything up. Gas expanded out of vent and ran down the rub rail and penetrated it via the self taping screws.

Cabin smelled but went totally away. Also, my fill neck hose clamps were very loose and weaped a little.

You said you only notice it underway. Do people ride down there while your driving?

Good luck.

Open the access panel under your back seat and check the vent line follow it under the side compartment and up to the vent also follow the fill hose make sure all connections are secure. if all are you may have a cracked fuel tank! last resort.