1994 F-150, 4.9L I6, 177K mi. Equipped with twin tanks.
For the last two fill-ups, the truck has produced a strong odor of fuel when parked with more than 1/2 tank; it also produces fuel odor just after running at lower fuel levels. Observation of the tank show that it is wet with fuel, coming from the top…exactly where is obscured by its mounted location.
Today I dropped the tank. There are no obvious leaks, and I’m beginning to suspect the fuel lines are leaking at the quick-connects.
Is it feasible to put in new washers/o-rings? I plan to diagnose things by leaving the tank dropped, fully connecting everything, and idling it while looking for leaks. As bad as it’s leaking, it should not be hard to observe. What other options are there–add on some compression fittings?