Pinpoint Test A : Slow To Fill: Notes

Normal Operation 

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 On-Board Refueling Vapor Recovery (ORVR) system.

This pinpoint test is intended to diagnose the following: 

• Fuel tank filler pipe vent tube, if equipped
• Fuel tank filler pipe
• Evaporative Emission (EVAP) system
• Fuel tank filler pipe flapper valve (part of the fuel tank filler pipe assembly)
• Fuel level vent valve, if equipped (part of the fuel tank)