Warning! Remember that gasoline is a highly flammable liquid! When working with fuel system components, observe all accepted fire safety measures. Do not smoke or approach the work area with an open flame or unprotected portable lamp. Do not service the system in rooms equipped with heating devices operating on natural gas and equipped with a pilot flame (such as water heaters and clothes dryers). Remember that gasoline is a carcinogen, i.e. a substance that can cause cancer. Try to avoid contact with exposed areas of the body, use rubber protective gloves, and in case of accidental contact with fuel, wash your hands thoroughly with warm water and soap. Collect spilled fuel immediately and do not store fuel-soaked rags near open flames. Remember that the fuel system of fuel-injected models is constantly under pressure. Before disconnecting the fuel lines, release any residual pressure in the system. Wear safety glasses when servicing fuel system components. Always keep a class B fire extinguisher on hand!
1. Locate the fuel pump wiring connector (see Removal and installation the fuel pump) and disconnect it. Start the engine and wait until it stops spontaneously. Disconnect the negative cable from the battery.
Warning! If your car stereo is equipped with a security code, make sure you have the correct combination to activate the audio system before disconnecting the battery! On all models, rewrite the radio settings.
2. Remove the filler cap to relieve excess pressure in the fuel tank.
3. Release the residual pressure in the system by loosening the union connection of the fuel line on the fuel filter housing. On models prior to 1996, the residual pressure is released by loosening the service bolt screwed into the hollow bolt of the union connection. On later models, the hollow bolt itself is loosened (service is not provided here).
4. To loosen the union nut, you will need two wrenches. On models equipped with a service bolt, the second wrench is used to hold the hollow bolt from turning. Where the hollow bolt itself is loosened, the second wrench is used to hold the fuel line union nut from turning (see accompanying illustration).
5. To collect spilled fuel, wrap the fuel filter nipple with a rag.
6. While holding the hollow bolt or fuel line connector from turning with the second wrench, slowly loosen the service/hollow bolt first - fuel will start to leak through the joint of the unit. Wait until the pressure is completely released, then unscrew the bolt completely. Do not forget to replace the sealing washer of the service/two washers of the hollow bolt.
7. After completing servicing the fuel system, screw the service/hollow bolt back into its original place and tighten it to the required torque.