Fuel Tank problems...

[jason]

1985 GMC Sierra K1500 with a 305 c.i. engine.

I recently found a puddle of gasoline underneath my drivers side gas tank.... so the drivers gas tank was leaking from "somewhere".

I dropped the tank today; hoping to find an easy fix... a leaky hose, a rusted hose clamp.  Unfortunately, the bottom of the drivers side fuel tank is rusted out and is weeping slowly... costing money and.. adding unnecessary danger to my parking spot.

Is it possible to use the switching valve to switch to the right side fuel tank and just plug the 3 lines that normally hook up to the drivers side tank while I source parts?

Its my daily driver... and I don't want to be without a vehicle.

If the right side tank is being used... will it ever send vapours or fuel back to the drivers side tank during normal operation?

Thanks for your feed back.

Jason.

[bd]

Switching to the opposite tank should work with no ill consequences.  The vent lines running to the vapor canister are not switched, so both tanks 'vent' constantly.  This should not present any problems, so you can leave the vent lines connected.  However, if you disconnect any lines they should be plugged.

[Irish_Alley]

there's a chance that something can jamb the plunger in the selector valve. this is a small chance but it can cause fuel to be returned back to the wrong tank.