Warning! Gasoline is extremely flammable and explosive, so care must be taken when working on any part of the fuel system.
Warning! The container in which the fuel was located contains fuel vapors and is potentially explosive.
Attention! Work on the fuel system must be carried out in a well-ventilated area, for which all windows and doors can be opened to create a draft.
Attention! When working on the fuel system, do not use open flames, electric welding, or tools that may generate sparks. Make sure there is a charged fire extinguisher in the immediate vicinity of the workplace.
Attention! Use goggles to protect your eyes from getting fuel in them. If fuel comes into contact with skin, wash the area with plenty of water.
Attention! Keep the fuel system clean as dirt entering the fuel system passages can block them and prevent the engine from running properly.
The fuel system consists of a fuel pump, pressure accumulator, fuel filter, fuel injectors, pressure regulator, fuel distributor and fuel lines.
When the engine is running or after the ignition is switched on, the fuel in the fuel system is under constant pressure. When working on the fuel system, you must first remove the pressure in the system. It is desirable to carry out work on relieving pressure in the fuel system on a cold engine.
1. Remove the fuel pump relay, then run the engine at idle until it stops. Due to the fact that the engine consumes fuel, and the fuel pump does not pump fuel into the fuel system, the pressure in the fuel system is significantly reduced.
2. Remove the ground wire from the battery. Remove the fuel filler cap to equalize the pressure in the fuel tank with atmospheric pressure. Install the fuel filler cap in place.
3. Place a container under any fuel line connection and have a rag ready to soak up spilled fuel.
4. Being careful, slowly loosen the fuel line connection. Cover the fuel line connection with a clean rag to prevent fuel from splashing to the sides. After depressurizing the fuel system, completely unscrew the fuel line and close its ends with plugs.