Fuel Tank: Testing and Inspection

NOTE: Place a dry chemical (Class B) fire extinguisher near work area.

Before removing the fuel tank for a suspected leak, make sure that fuel pipes are not leaking onto the tank. Once removed, make sure that fuel is not leaking around the fuel pump or fuel gage sending unit gaskets.

1. Relieve fuel system pressure. Refer to Fuel Pressure Release/Service and Repair. Service and Repair.
2. Drain fuel tank.
3. Remove fuel tank.
4. Plug fuel feed hose, fuel return pipe and fuel vapor pipe on the fuel tank.
5. Plug fuel filler neck opening.
6. Connect a piece of hose to the breather hose nipple on the fuel tank; secure with one clamp.
7. Submerge fuel tank in water or apply a soapy solution to the outside of the tank.
8. Apply 7 to 15 kPa (1 to 2 psi) air pressure to the breather hose.

- Air bubbles appearing from the fuel tank indicate a leak. Replace the fuel tank if it is leaking.