- keys "7", "10" and "13"
- screwdriver
Disconnect the wire from the "-" terminal of the battery.
Drain the fuel from the tank using a special hose with a bulb. Disconnect the wires and the fuel intake hose from the fuel level indicator sensor (see subsection 10.10.13, operations 1-9).
The fuel tank is secured with four nuts to the studs on the underbody of the vehicle.
1. Remove the three nuts securing the fuel tank protective screen (one of the nuts also secures the fuel tank) and...
2....remove the protective screen.
3. Loosen the fuel tank filler hose clamp and...
4....disconnect the hose from the fuel tank.
5. Release the holders securing the ventilation hose to the fuel tank and...
The text is copied from the online resource VazBook
6....remove the ventilation hose from the holders.
7. Remove the fuel supply hose from the hole in the fuel tank flange.
8. Remove the remaining three fuel tank mounting nuts (ask an assistant to hold the fuel tank).
9. Remove the air bleed hose from the fuel tank filler neck and disconnect it from the fuel tank fitting (shown by arrow), loosen the ventilation hose clamp and disconnect the hose from the fuel tank. Remove the fuel tank from the vehicle.
10. Unscrew the six nuts securing the fuel level indicator sensor flange, remove the spring washers, and also the tip of the "ground" wire from one of the studs.
11. Remove the fuel gauge sensor from the fuel tank.
12. Use a screwdriver to pry up and remove the fuel level indicator sensor flange gasket.
13. Check the condition of the fuel tank flange studs and the flange surface. If there is no thread on the studs, or if the flange is severely deformed, replace the fuel tank.
14. Inspect the tank along the line where the upper and lower parts meet. If you find a fuel leak, replace the tank or solder it. To do this, pour out the remaining gasoline, thoroughly rinse, steam and dry the tank. Then clean the leak, treat it with soldering acid and solder with soft solder (POS-60). Be careful! If there are gasoline vapors left in the tank, they may ignite.
15. Install the fuel tank (having previously installed a fuel level indicator sensor on it, if the tank is not equipped with one) onto the vehicle in the reverse order of removal.