Fuel Filter: Description and Operation

The fuel filter removes particles from the fuel that might otherwise clog the fuel distributor or injectors.
It is located on the pressure side of the pump so that a possible clogged filter will not damage the pump by causing it to run "dry."
The nylon-paper element inside the filter housing is designed to work best with the fuel flowing in one direction. An arrow on the fuel filter housing denotes the correct installation.
On those models where access to an in-tank strainer would be difficult, a small in-line filter is used between the fuel tank and the fuel pump.
For replacement intervals for all filters, refer to the maintenance schedule for each particular vehicle.
There is a mini fuel filter located in the hollow bolt that connects the pressure line to the fuel distributor on some vehicles.
The mini fuel filter is to be removed and replaced with a hollow bolt. Refer to the maintenance schedule for each particular vehicle.