Fuel Filter: Description and Operation

Rear Fuel Feed, Return And Vapor Pipes And Fuel Filter:

Fuel Sender/Pump Assembly In Fuel Tank.:

DESCRIPTION

A molded nylon in-line filter is used in the fuel feed pipe ahead of the fuel injection system. The filter element is made of paper, and is designed to trap particles in the fuel that may damage the injection system. The nylon filter housing is constructed to withstand maximum fuel system pressure, exposure to fuel additives, and changes in temperature. Quick connect fittings are used at both ends of the filter. Special care should be taken when working on a vehicle with a nylon fuel filter.

If an element should ever become plugged, the engine will stop running. An engine failure caused by a plugged filter element may be preceded by a hesitation or sluggish operation.

CAUTION: Always cover a fuel filter with a wet towel before using a torch near it. Also, never expose the vehicle to temperatures above 236°F for more than one hour, or more than 195°F for an extended period.

CAUTION: Take care not to nick or scratch the fuel filter. If damaged, it must be replaced.

LOCATION

The in-line fuel filter is located near the frame in front of the rear wheel on the drivers side of the car.



OTHER FILTERS AND STRAINERS

A woven plastic filter is located on the lower end of the fuel pick-up pipe in the fuel tank. This filter prevents dirt from entering the fuel line and also stops water from entering the fuel system, unless the filter becomes completely submerged in water. This filter is self-cleaning and normally requires no maintenance. Fuel blockage at this point indicates that the fuel tank contains an abnormal amount of sediment or water. Therefore, the fuel tank should be removed and thoroughly cleaned and the tank filter replaced.