Its a truck! With a big diesel engine, screaming down the road right on the other side of the windshield. Are you maybe expecting too much?
We had a distinguishable banging noise that was fixed upon delivery by installing a Velcro strip on the kick panel below the driver's door. Just not enough attachment points to a large fiberglass panel. The guys in the shop knew exactly what it was and said they upgrade on almost every one the prep.
Ric and Jan Golding
2016 Jayco Seneca 37FS