Pinpoint Test A: Slow To Fill
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- A1 CARRY OUT INSPECTION AND VERIFICATION
- Carry out inspection and verification.
- Was the cause of the concern found?
- Yes : REPAIR or INSTALL new components to correct the concern.
- No : GO to A2.
- A2 CHECK THE SYSTEM FOR ANY EVAP DTCs
- Connect the scan tool.
- Check the system for any of the following EVAP DTCs: P0446, P0451, P0452, P0453, P0454, P1450, P1451 and P260F.
- Are any of these DTCs present?
- Yes : Refer to the INTRODUCTION -- GASOLINE MODELS or INTRODUCTION - 6.7L DIESEL ENGINE -- F250-F550 SUPER DUTY PICKUPS to diagnosis the EVAP system.
- No : GO to A3.
- A3 MONITOR THE FTP WHILE FILLING THE FUEL TANK
- Monitor the Fuel Tank Pressure (FTP) reference value while filling the fuel tank. Refer to the reference values in the INTRODUCTION -- GASOLINE MODELS or INTRODUCTION - 6.7L DIESEL ENGINE -- F250-F550 SUPER DUTY PICKUPS .
- Is FTP within specification?
- Yes : GO to A5.
- No : GO to A4.
- A4 MONITOR THE FTP WHILE FILLING THE FUEL TANK WITH THE EVAP SYSTEM DISCONNECTED
- Disconnect the fuel tank-to-EVAP canister quick connect coupling at the EVAP canister.
- Monitor the FTP reference value while filling the fuel tank. Refer to INTRODUCTION -- GASOLINE MODELS or INTRODUCTION - 6.7L DIESEL ENGINE -- F250-F550 SUPER DUTY PICKUPS .
- Is FTP within specification?
- Yes : INSPECT the EVAP system for blockage or restrictions. REPAIR the blockage or restriction. If the blockage or restriction cannot be repaired, INSTALL new EVAP system components.
- No : GO to A5.
- A5 CHECK THE FUEL TANK FILLER PIPE ASSEMBLY FOR BLOCKAGE OR RESTRICTION
- Remove the fuel tank filler pipe assembly. Refer to FUEL TANK AND LINES - GASOLINE AND DIESEL .
- Inspect the fuel tank filler pipe and fuel tank filler pipe vent tube (if equipped) for a blockage or restriction.
- Is the fuel tank filler pipe or fuel tank filler pipe vent tube (if equipped) blocked or restricted?
- Yes : If possible, REPAIR the blockage or restriction. If the blockage or restriction cannot be repaired, INSTALL a new fuel tank filler pipe or fuel tank filler pipe vent tube.
- No : GO to A6.
- A6 CHECK THE FUEL TANK INLET CHECK VALVE
- Inspect the fuel tank inlet check valve for restriction or sticking.
- Is the fuel tank inlet check valve restricted or sticking?
- Yes : If possible, REPAIR the restriction. If the restriction cannot be repaired, INSTALL a new fuel tank. REFER to FUEL TANK AND LINES - GASOLINE AND DIESEL .
- No : GO to A7.
- A7 CHECK TO MAKE SURE THAT THE FUEL LEVEL VENT VALVE IS FUNCTIONING CORRECTLY
- Remove the FP module. Refer to FUEL TANK AND LINES - GASOLINE AND DIESEL .
- Inspect the fuel level vent valve for foreign material at the bottom drain hole.
- Invert the FP module. Watch for movement in the vapor line port and listen for a click noise.
- Was the foreign material able to be removed and a movement/click noise witnessed?
NOTE: The fuel level vent valve, if equipped, is part of the FP module.- Yes : Fuel level vent valve is OK. RETEST the system for normal operation.
- No : INSTALL a new FP module. REFER to FUEL TANK AND LINES - GASOLINE AND DIESEL .