Re: Thumping Noise?
Old guys get to say odd things and they are expected..........Here goes.
Occures when sitting still - probably not the rear. But noise is in the rear.
Id give a good look at the fuel pressure regulator, vent line, and associated hoses. Thinking the fuel is sloshing, there is a pressure controller in the rear and your sitting still otherwise.
All located under the passenger seat area under a large plastic shield in the same area. Let me know, Woody ta da
OH yea, fuel tank baffel (s) ??? behind your seats