Fuel system

GENERAL INFORMATION

Warning Refer to the precautions in subsection 6.3.1 before starting work.

The following operation will release pressure from the fuel system. Remember that fuel will remain in the system, so observe the necessary precautions when disconnecting system components. Use clean rags, wrapped around the connections, to collect fuel. Dispose of fuel-soaked rags with care. Plug or cover open fuel lines to prevent fuel leakage or the entry of dirt into the system. The fuel system consists of the fuel pump installed in the fuel tank, the fuel filter, the injector and the pressure regulator, as well as metal pipes and flexible hoses connecting these components. All these components contain fuel that is under pressure when the engine is running and/or when the ignition is switched off. Pressure remains in the system for some time after the engine is switched off, and it must be released before removing system components.

Releasing Fuel Pressure

PROCEDURE

1. Remove the fuel pump fuse from the vehicle fuse box. The fuses are not numbered, but their identity can be determined from the table on the fuse box cover and by using the wiring diagrams given in Section 14.

20.

2. Start the engine and wait until it stalls by itself.

3. Try to start the engine a couple more times to release all residual pressure from the system.

4. Disconnect the negative battery cable.

5. For safety, do not install the fuel pump fuse until all work on the fuel system is complete. If you install the fuse now, do not turn the ignition on until the work is finished.