Pinpoint Test A: Slow To Fill

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. 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 or INTRODUCTION -- HYBRID ESCAPE & HYBRID MARINER 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 or INTRODUCTION -- HYBRID ESCAPE & HYBRID MARINER 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 in this article.
- Monitor the FTP reference value while filling the fuel tank. REFER to INTRODUCTION - GASOLINE article or INTRODUCTION -- HYBRID ESCAPE & HYBRID MARINER 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 or FUEL TANK & LINES - HYBRID .
- 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 filler pipe inlet check valve restricted or sticking?
Yes : If possible, REPAIR the restriction. If restriction cannot be repaired, INSTALL a new fuel tank. REFER to FUEL TANK & LINES or FUEL TANK & LINES - HYBRID .

No : INSTALL a new fuel tank. REFER to FUEL TANK & LINES or FUEL TANK & LINES - HYBRID .