Fuel System Inspection

GENERAL INFORMATION

CAUTION

Gasoline is extremely flammable, so take special precautions when working on any fuel system components. Do not smoke, and do not work near open flames or an unshielded portable light. Do not perform this work in garages equipped with gas-fired appliances (such as water heaters, dryers, etc.). The work area must be well ventilated. If gasoline contacts your skin, wash it off immediately with soap and water. Wear safety glasses and keep a fire extinguisher nearby when performing any fuel system work. If gasoline is spilled, wipe it up immediately, but do not keep gasoline-soaked rags where they could spontaneously ignite.

PROCEDURE

1. If you smell gasoline while driving or after the vehicle has been parked in the sun, immediately inspect the entire fuel system.

2. Remove the fuel tank cap and check it for damage and corrosion. The sealing insert on the cap must be intact. If the cap is damaged or corroded, replace it.

3. Inspect the supply and return lines of the fuel system for cracks. Make sure the connections between the fuel system lines and the carburetor or fuel injection system, and between the fuel system lines and the in-line fuel filter, are not loose.

CAUTION

On vehicles equipped with fuel injection, the fuel system pressure must be relieved before servicing the fuel hoses.

4. Since some fuel system components, such as the fuel tank and some fuel lines, are located on the underside of the vehicle, they are easier to inspect when the vehicle is raised on a hoist. If this is not possible, raise the vehicle with a jack and support it on stands.

5. With the vehicle raised, inspect the fuel tank and filler neck for punctures, cracks and other damage. Pay particular attention to

CAUTION

Pay attention to the connection between the filler neck and the tank. Fuel leaks sometimes occur due to loose rubber filler neck clamps or deterioration of the filler neck material. Inspect all fuel tank brackets and straps to make sure the tank is securely mounted to the vehicle.

CAUTION

Never, under any circumstances, attempt to repair the fuel tank (except replacing its rubber components). A welding flame or any other open flame can easily cause gasoline vapors inside the tank to explode.

6. Carefully inspect all fuel hoses and metal lines running from the tank for loose connections, kinks, signs of hose material deterioration and other damage. Repair or replace damaged sections as necessary.