Normally, the fuel pump is mounted on top of the fuel tank - electric. I had an RV class A 1990 with Chevy chassis / 454 throttle body. Good luck. Hope your handy with tools and vehicle mechanics. 1st thing I did on it, in 1995 when I bought it, was a full veh & engine tune up - everything - belts, hoses, plugs, wires, filters, vacuum lines and every fluid replaced and every zerk lubed - if I could take it off - it was replaced. Given its a GM unit, was not hard to find matching parts. Just dig in.
02 Itasca Horizon 34HD FL XC Chassis/CAT 3126 330HP, 05 Explorer, Falcon II bar, ReadyBreak.
Toys: 6x12 enclosed, YZ250FX, YZ250, KTM250XC, XR80, Regal LSR 2100