Fuel Tank: Inspection: Procedure
- INSPECT FUEL TANK
- Level the vehicle.
- Complete the "BEFORE SERVICE PRECAUTION".
Refer to PRECAUTION
- Drain the fuel.
Refer to PROCEDURE - Step 3
- Remove the fuel tank and fuel pump unit as a single unit.
Refer to REMOVAL
- Perform the following procedure to verify fuel tank airtightness.
- Plug the fuel pump unit pipe, and ports B and C.
*a Port A *b Plug (Port B) *c Plug (Port C) *d Plug (Fuel Pump Unit Pipe) - Apply pressure of 5.9 kPa (44 mm Hg, 1.7 in Hg) to port A and wait for a while.
- Verify that there is no change in the pressure and no air leakage from the fuel tank.
If there is air leakage, replace the fuel tank.
Refer to REMOVAL
- Plug the fuel pump unit pipe, and ports B and C.
- Remove the port C plug.
*a Port A *b Plug (Port B) *c Port C *d Plug (Fuel Pump Unit Pipe) - Place the fuel tank in a level position.
- Close port A and apply 5.9 kPa (44 mm Hg, 1.7 in Hg) of pressure to port C, and leave it in this condition momentarily.
- Open port A and verify that the pressure decreases from 5.9 kPa (44 mmHg, 1.7 inHg).
If it cannot be verified, replace the fuel tank.
Refer to REMOVAL
- Close port A and apply -2.0 kPa (-15 mmHg, - 0.59 inHg) vacuum to port C, and leave it in this condition momentarily.
- Open port A and verify that the -2.0 kPa (-15 mmHg, -0.59 inHg) negative pressure condition restores to near positive pressure.
If it cannot be verified, replace the fuel tank.
Refer to REMOVAL
- Turn the fuel tank upside down.
- Apply pressure of 5.9 kPa (44 mmHg, 1.7 inHg) to port A and wait for a while.
*a Port A *b Plug (Port B) *c Port C *d Plug (Fuel Pump Unit Pipe) - Verify that there is no change in the pressure and no air leakage from the port C.
If there is air leakage, replace the fuel tank.
Refer to REMOVAL