Fuel Tank: Testing and Inspection

CAUTION:
- 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 level meter assembly O-ring.
- This check requires a fuel level meter assemble and a O-ring to be installed in the fuel tank.

1. Disconnect negative battery cable.
2. Perform Fuel Pressure Release Procedure.
3. Drain fuel tank.
4. Remove fuel tank.
5. Plug fuel feed pipe, fuel return pipe, and evaporative emissions (EVAP) pipe on fuel sender assembly.
6. Plug fuel filler neck opening.
7. Install a short piece of hose to the EVAP pipe.
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 EVAP pipe.

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