One problem related to gasoline engine has been reported for the 1998 Ford E-350. The most recently reported issues are listed below.
On 08/23/99 while making a left turn lost power from engine, over 1/2 tank of gas ,accesories still working ,engine still running . After repeated presses of the gas pedal it finally started to respond . The dealer could find nothing wrong . It had happen once before but we did not right down all the particulars. On 12/4/99 while driving 20 mph lost all power from gas pedal , engine still running ,idling poorly, coasted to side of road while continously pumping gas pedal after stopping and another 15 to 20 seconds of pumping it finally started to accelerate. Will be taken to dealer again for repairs, hopefully.