Pinpoint Test A : Slow To Fill

Normal Operation and Fault Conditions

Under 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 ORVR system.

1. A1 CHECK COMPONENTS FOR SIGNS OF DAMAGE
   
   
   • Visually inspect the following components for signs of damage:
     • Fuel tank filler pipe
     • Fuel tank filler pipe vent tube, if equipped
     • EVAP system
     • Fuel tank inlet check valve (part of the fuel tank)
     • Fuel level vent valve (part of the fuel tank)

   Was the cause of the concern found? 

   Yes	REPAIR or INSTALL new components to correct the concern.

   No

   GO to  A2

2. A2 CHECK THE FUEL TANK FILLER PIPE ASSEMBLY FOR BLOCKAGE OR RESTRICTION
   
   
   • Remove the fuel tank filler pipe assembly. REFER to: Fuel Tank Filler Pipe .
   • 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  A3

3. A3 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 .

   No	INSTALL a new fuel tank.