NHTSA Complaint #11394757 — 2018 FORD F-250

PROBLEM PERSISTING REGARDING EVAP SYSTEM AND FUEL PUMP. VEHICLE HAS AN EXTENDED CRANK TIME AND SPUTTERS AT OR AROUND 400 RPM FROM ANYWHERE BETWEEN TWO TO FOUR SECONDS DUE TO THE LOSS OF PRESSURE IN THE FUEL LINES DUE TO A FAULTY CHECK VALVE OR FAULTY EVAP PURGE VALVE. DUST CAN ENTER THE EVAP VENT AND OVERTIME WORK ITS WAY TO THE EVAP SYSTEM AND CAUSE THE EVAP PURGE VALVE TO STICK OR WORK PAST THE EVAP SYSTEM AND INTO THE FUEL VENT TUBE DESENDING INTO THE FUEL SENDING UNIT WHICH CAN CAUSE THE FUEL PUMP CHECK VALVE, WHICH KEEPS FUEL PRESSURE IN THE LINES AFTER THE MOTOR IS TURNED OFF, TO FAIL. IN A WORST CASE SCENARIO,VEHICLE MAY NOT START AT ALL UNLESS FUEL IS PUMPED BACK INTO THE LINES BY TURNING THE KEY ON AND OFF MULTIPLE TIMES. PROBLEM WITH MY VEHICLE MOST OFTEN OCCURS WHEN VEHICLE HAS BEEN SITTING OVERNIGHT OR SITTING DURING THE DAY WHILE I AM AT WORK. THIS ISSUE CAN BE FIXED BY REROUTING THE EVAP VENT UNDERNEATH THE HOOD BY THE FRESH AIR INTAKE AND REPLACING FUEL SENDING UNIT AND IN THE WORST CASE REPLACING THE FUEL TANK DUE TO THE ACCUMULATION OF SEDIMENT AND ALSO REPLACING THE EVAP CANISTER. DATE GIVEN IS AN APPROXIMATE WHEN THE ISSUE BEGAN AND IS CURRENTLY AN ONGOING ISSUE. PLEASE NOTE THAT BATTERY IS NEW AND TESTED EXCELLENT AND I USE CLEAN FUEL FROM VALERO. I BELIEVE THAT THIS ISSUE IS ALSO WHY I HAVE POOR GAS MILEAGE AS WELL WHICH IS 11.4 MPG. VEHICLE HAS HAD NO MODIFICATIONS IMPACTING ITS WEIGHT AND I HAVE THE OEM TIRE SIZE AS WELL.