make sure it is fuel injection hose.. not carb etc..
check the tank vent.. if you remove the fillter cap is the hiss normal ?
tank vent runs from there to engine bay.. thinner of the 3 pipes near fuel filter to inlet manifold and then to carbon canister.. check the one way valve is the correct way around at the carbon canister... could be building up a vaccum in the tank.. but probably just a corroded pipe..
Simon
|