Attention! Gasoline is a flammable liquid, so when working with any element of the fuel system, take all fire safety measures. Do not smoke, do not use open flames and do not use a portable pump without a safety net. Do not work in a room where there are gas appliances with "on duty" wick (like gas water heaters and dryers). Gasoline is a carcinogen, do not allow it to come into contact with the skin - wear plastic gloves. If gasoline accidentally comes into contact with skin, wash immediately with soap and water. Soak up the drunk gasoline immediately with rags, and put the rags in a safe place where there is no possibility of their ignition. Note that a vehicle's fuel system is always pressurized, so always depressurize the system first before disconnecting any fuel line. Always wear safety goggles when working on the fuel system. Keep a working carbon dioxide fire extinguisher handy and familiarize yourself with the rules for its use in advance.
1. Before working on any element of the fuel system, it is necessary to relieve pressure in it.
2. Loosen the fuel tank filler cap to depressurize the fuel tank.
3. Remove the fuel pump relay from the fuse box in the engine compartment (see chapter 12).
4. Start the engine and let it run until it stalls. Then turn it several times with a starter to ensure that all residues of not only fuel, but also its vapors, are removed from the fuel lines. Disconnect the negative cable from the battery (do this always if you have to work on the fuel system).
Caution: If your vehicle's audio system is equipped with an anti-theft protection, make sure you know the unlock code before disconnecting the battery.
5. Now there is no excess pressure in the fuel system.
Note. Before loosening any clamp or unscrewing any fuel line fitting, cover the work area with rags so that accidentally spilled fuel does not get on the engine. After finishing work, replace the fuel pump relay and connect the negative wire to the battery.