FORD issued a recall on the E150 and E350 models

On certain vehicles equipped with ambulance prep package and a 132.5L mid-ship fuel tank, when operating in severe service conditions (at or near Gross Vehicle Weight Rating with frequent body twist events that may occur during off road, rough road or speed bump events), the mid-ship fuel tank may develop an approximately one-inch long crack where it contacts the frame cross member. This could result in fuel leakage with the potential for fire. Correction: Fuel tanks will be inspected and replaced if necessary. In addition, insulators will be installed to reduce stress levels in the fuel tank and reduce the likelihood of future cracks.