TURBOCHARGER ON-VEHICLE INSPECTION

PROCEDURE


  1. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS


    1. Check that there is no damage and cracks on the hoses and gaskets, and that there are no air or oil leaks from connections.

      Tech Tips

      Cracked hoses and gaskets or loose connections may cause the engine to run improperly or stall.

  2. INSPECT TURBOCHARGER SUB-ASSEMBLY

    Note

    Perform this procedure in a safe location with another person.


    1. Start the engine and warm it up.

    2. Connect the GTS to the DLC3.

    3. Turn the engine switch on (IG).

    4. Enter the following menus: Powertrain / Engine / Data List / Boost Pressure Sensor


      Powertrain > Engine > Data List
      Tester Display
      Boost Pressure Sensor

    5. Fully accelerate the vehicle with the shift lever in 2nd and measure the boost pressure when the engine speed is 4000 rpm (approximately 60km/h (39 mph)).

      Standard Pressure
      120 kPa or higher (1.2 kgf/cm2, 2.1 psi)

      If the result is not as specified, check the waste gate valve actuator and turbocharger sub-assembly.

  3. INSPECT TURBINE SHAFT


    1. Remove the compressor inlet elbow.

      Click here

    2. A01HH6D

      Grasp the compressor wheel nut with your fingers, and then turn the nut. Check that the compressor wheel rotates smoothly.

      Note

      If the compressor wheel does not rotate smoothly and there is interference between the turbine wheel and turbine with valve housing sub-assembly, replace the turbine with valve housing sub-assembly at the same time.

      Tech Tips

      If the compressor wheel does not rotate smoothly, replace the compressor with bearing housing sub-assembly.

    3. Install the compressor inlet elbow.

      Click here

  4. INSPECT WASTE GATE VALVE ACTUATOR WITH BRACKET ASSEMBLY


    1. A01HH31C02
      *a Exhaust Heat Insulator Check Window
      *b Link Position When Vacuum of 35 +/- 4.0 kPa (263 +/- 35 mmHg, 10 +/- 1.2 in.Hg) Applied
      *c Link Position When No Vacuum Applied 0 kPa (0 mmHg, 0 in.Hg)

      Using a vacuum pump, apply a vacuum of 35 +/- 4.0 kPa (263 +/- 35 mmHg, 10 +/- 1.2 in.Hg) to the diaphragm chamber and check that the waste gate valve actuator link operates as shown in the illustration through the exhaust heat insulator check window.

      OK
      Check that the waste gate valve actuator link operates as shown in the illustration.

      Note

      Do not apply a vacuum of 65 kPa (488 mmHg, 19 in.Hg) or more to the waste gate valve actuator as doing so may damage the diaphragm.

      Tech Tips

      If the result is not as specified, check the waste gate valve actuator with bracket assembly and turbocharger sub-assembly.