Opel Vectra A - the Repair manual and operation

5.2.8. Removal of pressure in fuel system

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Prevention

At removal of pressure in fuel system pressure in fuel system just decreases, but fuel still remains in elements of fuel system.

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The fuel system of the car consists of the fuel tank installed in a back part of the car, fuel pump, fuel filter, fuel nozzles and the regulator of pressure of fuel in the throttle case. Elements of fuel system connect to use of metal pipes and flexible hoses. In fuel system there is a fuel under pressure at the working engine or at inclusion of ignition.

The fuel system is under pressure a long time even after switching off of the engine and therefore before carrying out any works on fuel system or a rassoyedineniye of elements of fuel system it is necessary to take off pressure.

PERFORMANCE ORDER

1. Remove a safety lock No. 11 of the fuel pump or relay of the fuel pump and start the engine on idling turns to its stop. After a stop of the engine include a starter several times to be convinced that fuel does not arrive to fuel nozzles, then switch off ignition. 2. Establish into place a safety lock or the relay of the fuel pump.