WINNEBAGO CHIEFTAIN 1991 32 FT GAS TANK ISSUE

rtimblin54 wrote:
Grandson's Chieftain having issues on the trip. When he adds gas, after a few gallons fuel runs out somewhere coming over the top of the tank. Nozzle does not shut off. Sounds like the tank is overfull but after about 8 or so gallons of driving, the engine begins to sound fuel starved. Sounds to me like vacuum lock in the tank but can't create a scenario that fits all the symptoms. We need to work out a workaround to get him from Ohio to Missouri (next major stop) if at all possible. Any ideas?

Obviously a leak near the top, that sucks air, once the fuel level gets below it. Usually happens with the genset pickup tube or rubber hose leading to it, but this is of a more serious nature.
Don't know of any workaround, other than fixing it and if he can't go through the floor right over the pump access plate, then he'll have to drop the tank.
Through the floor is the way to go, if at all possible and the tank is right below it. Then using a marine type access plate to cover the hole.
Can't say if this one has an internal or external fuel pump, but either way, this seems to be the only answer, without a visual study.