Fuel Tank: Testing and Inspection

Important

- Before attempting "Fuel Tank Leak Check" place a dry chemical (Class B) fire extinguisher near work area.
- Before removing the fuel tank for a suspected leak, make sure fuel pipes are not leaking onto the tank. Once removed, make sure fuel is not leaking around fuel sender assembly O-ring.
- This check requires a fuel sender assembly and a O-ring to be installed in the fuel tank.

1. Disconnect negative battery cable.
2. Relieve fuel system pressure see "Fuel System Pressure Relief".
3. Drain fuel tank see "Draining Fuel Tank".
4. Remove fuel tank see "Fuel Tank Assembly Remove and Replace".
5. Plug fuel feed tube, fuel return tube, and vapor tube on fuel sender assembly.
6. Plug fuel filler neck opening.
7. Connect a piece of hose to the vent tube.
8. Submerge tank in water or apply soap solution to outside of tank.
9. Apply 7 to 10 kPa (1 to 1 1/2 psi) air pressure to the piece of hose on the fuel tank vent tube.

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