ORIGINAL: chris246810
what is LSN? also why can't you just pinch the line? to keep the air from flowing out of the gas tank? isn't that what the check valve does?
Because you need air flow into the fuel tank to help fuel flow.
Low
Side
Needle, if everything is clean, unbroken and moveing freely your needles might be off.
How much gas are you giveing it when you try to start the truck?