I was wiring in a trailer hookup this weekend and had to pull a tail light. Was surprised to find a gallon or so of water in the bottom of the fuel filler side rear quarter panel. I have been hearing sloshing from the back for months but figured it was the gas tank. This might explain why the truck fogs up all the time. Upon inspection, I found the drain hole, which had been rubber-stoppered, and I drained the water. Left the cap off.
I also noticed that the gasket that seals the gas filler tube (it's called the packing) is as brittle and cracked as month old bread. Best guess: rain water is dripping in through the gas filler door and down through the cracks in the packing. Replacing it looks like a bitch. Seems like I need to remove the whole filler neck. I was thinking about running a bead of RTV gasket around it instead - the gasoline impervious kind. Thoughts?
I also noticed that the gasket that seals the gas filler tube (it's called the packing) is as brittle and cracked as month old bread. Best guess: rain water is dripping in through the gas filler door and down through the cracks in the packing. Replacing it looks like a bitch. Seems like I need to remove the whole filler neck. I was thinking about running a bead of RTV gasket around it instead - the gasoline impervious kind. Thoughts?