Pinpoint Test 4: Slow To Fill
PINPOINT TEST 4: SLOW TO FILL
Normal Operation
Fuel should flow at a steady rate through the fuel tank filler pipe into the fuel tank. As fuel enters the fuel tank air is vented through the filler pipe or the on-board refueling vapor recovery (ORVR) system.
Possible Causes
- Fuel tank filler pipe vent tube, if equipped
- Fuel tank filler pipe
- Evaporative emission (EVAP) system
- Fuel tank level shut-off valve (part of the fuel tank)
- Fuel tank
- Bent, kinked or damaged fuel tank filler pipe
- Bent, kinked or damaged fuel tank filler pipe vent tube (if equipped)
- Incorrect routing of the fuel tank filler pipe
- Incorrect routing of the fuel tank filler pipe vent tube (if equipped)
- Incorrect position of fuel tank filler pipe clamps
- Incorrect position of fuel tank filler pipe vent tube clamps (if equipped)
- Fuel tank mounted vapor tubes bent or damaged
- Evaporative emission (EVAP) system tubes or hoses bent or damaged
- Accident damage to the fuel tank
- Accident damage to the vehicle effecting the fuel tank filler pipe-to-body connection
- Unauthorized modifications and/or alterations to the vehicle
- EVAP system fresh air tube plugged (dirt, spider webbing)
HINT
- An FTP voltage PID reading greater than 4.85 volts in key ON, engine OFF or key ON, engine running indicates a concern is present.
