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 lines 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.

FUEL TANK LEAK CHECK
1. Disconnect negative battery cable.
2. Relieve fuel system pressure. Refer to Fuel Delivery / Service and Repair.
3. Drain fuel tank.
4. Remove fuel tank.
5. Cap fuel feed pipe, fuel return pipe and EVAP pipe on fuel sender assembly.
6. Connect a piece of hose to the vent pipe.
7. Submerge tank in water or apply soap solution to outside of tank.
8. Apply 7 to 10 kPa (1 to 1 1/2 psi) air pressure to the vent hose on the fuel tank.

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