I am KevinA's wife. Let me let you in on another secret about this pickup, if yours has it. We went through several months when the pickup would stop, have to sit a bit, and then start and run again for a while, especially on hills (lots of them in eastern IA where we lived at the time - annoying and scary as I was driving to grad school and coming home at the wee hours of the morning).
We looked at the manual, bought other manuals, and even took it in, I think.
Finally, we found and replaced a third gas filter back near one of the rear tires
that was not listed in any book. Problem solved.
PS: Great-looking camper! I can't believe the space in it.