Fuel Delivery: Operation

The fuel tank assembly consists of the fuel tank, fuel tank shield, fuel tank straps, fuel pump module assembly, fuel pump module lock nut/gasket, and fuel tank check valve (refer to Emission Control System for fuel tank check valve information).

A fuel filler/vent tube assembly using a pressure/vacuum, 1/4 turn fuel filler cap is used.

Also to be considered part of the fuel system is the evaporation control system. This is designed to reduce the emission of fuel vapors into the atmosphere. The description and function of the Evaporative Control System is found in Emission Control Systems.

Both fuel filters (at bottom of fuel pump module and within fuel pressure regulator) are designed for extended service. They do not require normal scheduled maintenance. Filters should only be replaced if a diagnostic procedure indicates to do so.