Pic. 2.394. Components of fuel lines and fuel vapor lines
Withdrawal
Remove the fuel filler cap to reduce the pressure in the tank. Raise the vehicle and disconnect the fuel pump connector.
Attention! Relieve residual pressure in the fuel system before disconnecting fuel pipes or hoses: this will prevent fuel splashing.
When disconnecting fuel pipes or hoses, cover the area with a clean rag.
Loosen the fuel pump mounting screws, then remove the fuel pump assembly from the fuel tank.
Disconnect the hose and fuel return line.
Disconnect a hose and a line of removal of vapors of fuel.
Examination
Check fuel pipes and hoses for cracks, deformation, or damage.
Check the canister purge solenoid valve for blockages.
Check the fuel pump assembly for blockages or damage.
Installation
Connect the evaporative emission system hose and fuel return hose.
Pic. 2.395. Fuel hose connection diagram
If the fuel line has a stepped structure, connect the fuel hose as shown in Figure 2.395.
If the fuel line does not have a stepped structure, you just need to securely put the hose on the fuel line.
Install the fuel pump assembly and secure it with the set bolts.
Pic. 2.396. Fuel tank components
Removal, check and installation of a fuel tank
Withdrawal
To bleed residual pressure from the fuel lines and high pressure hoses, disconnect the fuel pump connector, then start the engine and let it run. After the engine stalls on its own, turn the ignition key to the «OFF» («Off»).
Note. To prevent fuel splashing, make sure that the residual pressure in the high pressure fuel lines is reduced before disconnecting the main fuel pipes and hoses.
Disconnect the wire from the negative (–) battery terminals.
Remove the fuel filler cap.
Pic. 2.397. Fuel Return Hoses and Evaporative Emission Systems
Disconnect the fuel return hose and the evaporative emission system hose (pic. 2.397).
Disconnect the fuel pump connector.
Disconnect the high pressure fuel hose from the fuel tank.
Pic. 2.398. Fuel tank straps
Loosen the two self-locking nuts and remove the two tank straps (pic. 2.398).
Disconnect the filler hose and drain hose from the fuel tank.
Remove the evaporative emission hose and fuel tank.
Examination
Check fuel pipes and hoses for cracks or damage.
Check the condition of the cap valve and the condition of the fuel filler cap.
Check the fuel tank for deformation, corrosion or cracks.
Check the fuel tank for dust or foreign particles inside.
Check the in-tank pump fuel filter for damage or blockage.
Check if the two-way valve is working.
Pic. 2.399. Checking the two-way valve
Using a manual vacuum pump, check the operation of the two-way valve (pic. 2.399).
Installation
Connect the drain hose and filler hose to the fuel tank so that the hose is pushed onto the tube about 40 mm from the end of the tube.
Pic. 2.400. Filler hose connection diagram
When connecting the filler hose, make sure that the end of the hose with the short straight section is on the side of the fuel tank tube (pic. 2.400).
Make sure both bands are properly wrapped around the fuel tank. Install the fuel tank in place, tighten the self-locking nuts until they stop, that is, until the ends of the tapes touch the car body.
Connect the evaporative emission system hose and return hose. When connecting the hose to the tube, make sure that the hose is put on the tube as shown in the figure.
Pic. 2.401. Scheme of connecting the high pressure hose to the fuel pump
Connect the high pressure fuel hose to the fuel pump, first tighten the union nut by hand, then tighten the nut to the specified torque. Make sure the fuel hose is not kinked (pic. 2.401).
The moment of an inhaling of a union nut of a fuel hose of a high pressure: 30–40 Н·м.
Note. When tightening the union nut, twisting and bending of the fuel line is not allowed in order to avoid damage to the fuel pump fitting.
Connect the fuel pump connector.