help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

i removed the fuel tank from my 4 door 96 tahoe.it has a return line a supply and a line that loops the tank.whats the looped fuel line for?im lost.i put a fuel cell in it and have no clue what the 3rd line is.please help me someone thanks

I know that my Mazda had a third line from the charcoal canister, but I don't know if that is the same for your truck. Do you have a hanes manual for it?

Vent line...

im pretty sure there should be a charcoal canister on that beast.  that is probably what it is for.

It's probably to help cool the fuel before it actually dumps it in the tank.  Prevent fuel loss thru evaporation.  I'm not exactly sure, but it sounds right.

i got a 4 door 96 hoe ill check it out and let you know what the 3rd line is for

Jeff I followed up with my buddy last night after we talked and he advised me it is a line that goes to the charcoal canister.  The canister is usually on the driver side of the engine compartment.  The other end of that canister conencts to the engine. Good luck man.  

--------------------------------------------- Originally posted by Uncle Fester Jeff I followed up with my buddy last night after we talked and he advised me it is a line that goes to the charcoal canister.  The canister is usually on the driver side of the engine compartment.  The other end of that canister conencts to the engine. Good luck man.   --------------------------------------------- That is how mine is on my 97

One is the supply one is the return, the big one is a vent that goes to the filler neck and the last one goes to the charcoal canister in the engine compartment.