Pinpoint Test A: Slow To Fill

WARNING: This page is about a different car, the 2014 Ford F-150. 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 ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) 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 ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) .
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 ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID) (SECTION 0) .
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 .
- 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 restrictions. If the restriction cannot be repaired, INSTALL a new fuel tank. REFER to FUEL TANK AND LINES .
- No : GO to A7 .
A7 CHECK TO MAKE SURE THAT THE FUEL LEVEL VENT VALVE IS FUNCTIONING CORRECTLY
- NOTE: The fuel level vent valve, if equipped, is part of the FP module.
  
  Remove the FP module. Refer to FUEL TANK AND LINES .
- Inspect the fuel level vent valve for foreign material at the bottom drain hole.
- Invert the FP . Watch for a movement and a click noise.
Was a movement/click noise witnessed?
- 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 .