Pinpoint Test A: Slow To Fill

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. 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 the 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 the 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. Refer to QUICK CONNECT COUPLING .
- Monitor the FTP reference value while filling the fuel tank. Refer to the 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 .
- 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 TO MAKE SURE THAT THE FILL LIMITING VENT VALVE IS FUNCTIONING CORRECTLY
- Remove the fill limiting vent valve. Refer to EVAPORATIVE EMISSIONS .
- Invert the fill limiting vent valve. Listen for a clicking noise in both directions.
- Was a clicking noise witnessed?
Yes : Fill limiting vent valve is OK. Retest the system for normal operation.

No : INSTALL a new fill limiting vent valve. REFER to EVAPORATIVE EMISSIONS .