 Fuel shut off
Yes, the safety shutoff switch is under the carpet on the passenger kick panel. If that doesn't solve it, the ground wire for the fuel pump(s) goes back to the battery negative. There is a fusible link near the battery that gets old and falls apart. If reconnecting that doesn't help, check the wiring at the fuel pump(s). If there are two pumps, the front pump is attached to the frame under the driver's seat. The connectors there can fall apart easily. The connections at the gas tank are usually pretty solid; but take a look, you can see them by looking above the rear tire, under the body and in toward the center of the rig. | 
