Most cars have an inertial switch that shuts off the fuel pump in an accident, but I was not aware that a Workhorse chassis has one. Can anybody confirm that?
Ron - are you sure the fuel pump is not running or is that just a guess as to why it won't start?
Seems odd that the step quit working at the same time the engine problem began. Since both are electrical, maybe the problem is a fuse or a damaged wire. Was the "bump" a pothole or did you perhaps strike something with the underside of the chassis?
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC