How to Replace a Fuel FilterSelect Vehicle
Note: This is a general guide for all vehicles.
- Fuel Filter
- Hose Pincher
Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes.
WARNING: Remember at all times that gasoline is highly flammable. Keep a fire extinguisher nearby whenever you are working with the fuel system. Avoid smoking, and keep any sparks or other sources of ignition away from the vehicle and fuel tank. Never use an incandescent trouble light near the fuel tank because the hot surface of the light bulb can ignite any fuel that might spill or splash on it. Fuel vapors are heavier than air and can also travel a long distance along the garage floor. Be aware of any electrical equipment that could ignite the spilled fuel. Work with caution.
- Relieve the fuel tank pressure by loosening the gas cap.
- Remove the fuel pump fuse or relay (refer to your owner's manual for location).
- Start and run the engine until the fuel in the lines is used up and the engine stops.
- Crank the engine for two seconds to remove any remaining pressure.
Note: On older vehicles with carbureted engines, fuel lines are attached with simple hose clamps. On fuel injected engines, the fuel lines are attached with clamps, or with quick lock couplings, which require a special tool to remove. On some import cars, the fuel lines are attached to the fuel filter with banjo fittings. The copper washers on the banjo fittings must be replaced when the fuel filter is changed.
Note: The engine may not start easily on the first try due to lack of fuel, but it should start as the pressure increases and the fuel reaches the injectors.