When refueling the vehicle, the fuel pump handle must be inverted in order to deliver gas. Without such upside down delivery. the pump shuts off.. The Inverted handle delivery creates a health and safety issue as gas can easily overflow the tank fuel filler tube. My wife just spent three days in the hospital after being bathed in gas, and now has heart and vision issues as a result. Jeep has a history of gas filler tube issues. Numerous Internet blogs report the same issue.