Pinpoint Test A: Slow To Fill
- 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?
- A3 MONITOR THE FTP WHILE FILLING THE FUEL TANK
- Monitor the Fuel Tank Pressure (FTP) reference value while filling the fuel tank. REFER to
INTRODUCTION - GASOLINE MODELS
.
- 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
.
- 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 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 & LINES
.
- No
: GO to A7.
- A7 CHECK TO MAKE SURE THE FUEL LEVEL VENT VALVE IS FUNCTIONING CORRECTLY
- Remove the FP
module. Refer to
FUEL TANK & LINES
.
- Inspect the fuel level vent valve for foreign material at the bottom of the drain hole.
- Invert the FP
module. Watch for 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
.