Fuel Tank: Testing and Inspection

WARNING:
- 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 O-ring to be installed in the fuel tank.

1. Relieve the fuel system pressure (refer to the Fuel System Pressure Relief Procedure).
2. Drain the fuel tank (refer to Draining Fuel Tank).
3. Remove the fuel tank (refer to Fuel Tank Replacement).
4. Cap the fuel feed pipe. the fuel return pipe, and the EVAP pipe on the fuel sender assembly.
5. Plug the fuel tank filler pipe opening.
6. Connect a piece of hose to the fuel tank EVAP pipe.
7. Submerge the fuel tank in water or apply a soap solution to the outside of the fuel tank.
8. Apply 7 to 10 kPa (1 to 1.5 psi) air pressure to the piece of hose on the fuel tank EVAP pipe.