Important:
• | Before attempting the Fuel Tank Leak Check place a dry chemical
(Class B) fire extinguisher near the work area. |
• | Before removing the fuel tank for a suspected leak, make sure
the fuel pipes are not leaking onto the fuel tank. Once removed, make sure
fuel is not leaking around the fuel sender gasket. |
• | This check requires a fuel sender assembly, fuel filler cap, and
a fuel sender gasket to be installed in the fuel tank. |
- Disconnect the negative battery cable.
- Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure
.
- Drain the fuel tank. Refer to
Fuel Tank Draining
.
- Remove the fuel tank. Refer to Fuel Tank Replacement
.
- Cap the fuel feed pipe, the fuel return pipe, and the EVAP pipe
on the fuel sender assembly.
- Connect a piece of hose to the vent pipe.
- Submerge the fuel tank in water or apply a soap solution to the
outside of the fuel tank.
- Apply 31-38 kPa (4½-5½ psi)
air pressure to the piece of hose on the fuel tank vent pipe. Air bubbles
appearing from the fuel tank indicate a leak.
- Replace the fuel tank if it is leaking. Refer to Fuel Tank Replacement
.