2. Disconnect the suction hose A from the fuel pump and connect the vacuum pump B.
3. Start the engine and check the vacuum hoses and tubes.
- If there is a vacuum, proceed to step 4.
- If there is no vacuum, replace the fuel filter.
4. Turn the ignition key to the "OFF" position.
5. Connect vacuum pump A to the suction pump and apply vacuum to pump B.
- If the vacuum holds, check for a blockage in the suction line and replace the three-way union.
- If the vacuum does not hold, proceed to step 6.
6. Disconnect the ventilation hose A on the filler side from the three-way joint and install the rubber cap C on the three-way joint.
7. Connect vacuum pump A to the suction pump and apply vacuum to pump B.
- If vacuum holds, check for blockage between the three-way connection and the fuel tank vapor/liquid separator valve on the vent line. If line is OK, replace fuel tank.
- If the vacuum does not hold, proceed to step 8.
8. Connect vacuum pump A to vent hose B on the filler neck side and apply air pressure to the hose.
- If the air pressure holds, check for a blockage between the three-way joint and the base of the filler neck on the vent line.
- If the air pressure does not hold, proceed to step 9.
9. Remove the rubber cap from the three-way joint, reconnect the ventilation hose to the three-way joint.
10. Connect vacuum pump A to suction hose B and apply air pressure to the hose.
If the air pressure holds, the vent line and suction line are OK.
If the air pressure does not hold, check for vacuum leaks at the suction hose and replace the three-way union.
[Original article on the website: HondaBook.ru]