Fuel Tank: Testing and Inspection

CAUTION:
^ Place a dry chemical (Class B) tire extinguisher near the area before performing a Fuel Tank Leak Check. Before removing the fuel tank for a suspected leak, make sure that the fuel pipes or the tubes are not leaking onto the tank. Once removed, make sure that the fuel is not leaking around the fuel sender O-ring. Failure to follow these precautions may result in personal injury.
^ Refer to the Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Refer to the Fuel Pressure Release Procedure.
3. Drain the fuel tanks. Refer to Fuel Tank Draining Procedure. Fuel Tank
4. Remove the fuel tanks.
^ Refer to Fuel Tank Replacement (Right).
^ Refer to Fuel Tank Replacement (Left).
5. Cap or plug the following on the left fuel tank:
^ The 3 fuel sender assembly pipes
^ The vapor recirculation pipe
6. Cap or plug the following on the right fuel tank:
^ The 2 fuel sender assembly pipes
^ The FLVV pipe
7. Install the [1][2]EVAP vapor pipe to both fuel tanks.

NOTE:
^ Do not submerge the fuel tank assembly in water in order to check for leaks in the fuel tank. Submerging the fuel tank in water may damage the electrical components mounted on the fuel tank.
^ Refer to Fastener Notice in Service Precautions.

8. Install the crossover hose to both fuel tanks.
Tighten
Tighten the crossover hose clamps to 4 N.m (35 lb in).
9. Apply a soap solution to the outside of the fuel tanks and the pipe and hose connections.
10. Apply 10 kPa (1 1/2 psi) to the fuel fill hose on the left fuel tank. Air bubbles appearing from the fuel tanks indicate a leak.
11. Replace the fuel tanks if it is leaking.
^ Refer to Fuel Tank Replacement (Right).
^ Refer to Fuel Tank Replacement (Left).