The truck has been acting weird lately sucking air dying stalling Claddaring etc. and I have been using my rear tank. I want to put fuel in it this morning and I can't. It just spits fuel out on the ground. Could these two problems be related?
perhaps....sounds like fill neck is blocked and tank may have no air getting in causing problems...
Time to drop the tank and see whats going on.
Look at this thread over on FTE...Oh. Whats a harpoon?
My vote is to pull the bed if you have another person! I find it much easier to work on from the top, and it's only six bolts, the taillights, and the fuel filler neck mounts to pull the bed. Takes about 20 minutes.