Fuel Leakage Test

WARNING: Fuel line spills and leaks are dangerous. Fuel can ignite and cause serious injuries or death and damage. Always carry out the following procedure with the engine stopped.

1. Release fuel pressure.

Fuel Pressure Release

2. Disconnect the negative battery cable.

Fuel Injector Leakage Inspection:

3. Remove the fuel distributor component from the intake manifold.
4. Connect the fuel hoses.




5. Remove the fuel pump relay.

CAUTION: Connecting the wrong fuel pump relay socket terminals may possibly cause a malfunction. Carefully connect the specified terminals only.




6. Connect the fuel pump relay socket terminals 30 and 87 by using a jumper wire.

CAUTION: Before connecting the negative battery cable be sure all fuel connections, clamps and fittings are secure. Fuel pump will operate at full pressure anytime the cable is connected to the battery. When the cable makes contact, it is sure to arc and create a danger of ignition or explosion.

7. Connect the negative battery cable to operate the fuel pump and inspect for fuel leaks from the fuel injectors.

Fuel Leakage: Less than 1 drop in 2 minutes




8. Disconnect the negative battery cable and remove the jumper wire.
If not as specified, remove the leaking fuel injector and inspect the O-rings and fuel distributor for damage. Replace as necessary.

9. Install the fuel injector.

CAUTION: Connecting the wrong fuel pump relay socket terminals may possibly cause a malfunction. Carefully connect the specified terminals only.




10. Connect fuel pump relay socket terminals 30 and 87 by using a jumper wire.

CAUTION: Before connecting the negative battery cable be sure all fuel connections, clamps and fittings are secure. Fuel pump will operate at full pressure anytime the cable is connected to the battery. When the cable makes contact, it is sure to arc and create a danger of ignition or explosion.

11. Connect the negative battery cable to operate the fuel pump and inspect for fuel leaks from fuel injector.
12. Disconnect the negative battery cable and remove the jumper wire.
If not as specified, carry out the "Volume Test".

13. Complete the "AFTER REPAIR PROCEDURE".