Pinpoint Test A: Slow To Fill

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 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 EVAPORATIVE EMISSION (EVAP) DTCs
- Connect the scan tool.
- Check the system for any of the following EVAP DTCs: P0446, P0451, P0452, P0453, P0454, P1443, P1450, P1451 and P260F.
- Are any of these DTCs present?
Yes : REFER to INTRODUCTION - GASOLINE article to diagnosis the EVAP system.

No : GO to A3.
A3 MONITOR THE FUEL TANK PRESSURE (FTP) WHILE FILLING THE FUEL TANK
- Monitor the fuel tank pressure (FTP) reference value while filling the fuel tank. REFER to INTRODUCTION - GASOLINE article.
- 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 article.
- 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 & 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 A7.
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 & LINES - GASOLINE AND DIESEL .

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 fuel pump (FP) module.

Remove the FP module. REFER to FUEL TANK & LINES - GASOLINE AND DIESEL .
Invert the FP module. 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 & LINES - GASOLINE AND DIESEL .