EXHAUST MANIFOLD W/ TURBOCHARGER PRECAUTION


  1. MAINTENANCE PRECAUTION


    1. Do not stop the engine immediately after pulling a trailer, driving at a high speed, or driving uphill. Let the engine idle for 20 to 120 seconds before turning the ignition switch off. According to the driving conditions, vary the idling time.

    2. Avoid quick acceleration or quickly increasing the engine speed immediately after starting a cold engine.

    3. If the turbocharger sub-assembly is found to be defective, it must be replaced. Also, inspect the source of the trouble including the conditions under which the turbocharger sub-assembly was used. Repair or replace the following as necessary:


      1. Engine oil (level and quality)

      2. Oil lines leading to the turbocharger sub-assembly

    4. A00YA5C

      Be careful when removing and installing the turbocharger sub-assembly. Do not drop, strike or grasp easily-deformed assembly parts, such as the actuator or push rod, during removal and installation.

    5. Before removal, cover both the intake and exhaust ports and the oil inlet to prevent dirt or foreign matter from entering.

    6. A00YARXC01
      *1 Oil Pipe
      *a Deposits

      If the turbocharger sub-assembly is being replaced, check for deposits in the oil pipe. If necessary, replace the oil pipe.

    7. Thoroughly remove any of the old gasket that is stuck to the lubrication oil pipe flange or turbocharger oil flange.

    8. If replacing the bolts or nuts, use TOYOTA genuine parts to prevent breakage or deformation.

    9. A00YBI4

      If the turbocharger sub-assembly is being replaced, add 20 cc (1.2 cu. in.) of new oil into the turbocharger oil inlet hole and turn the turbine wheel by hand to lubricate the bearing.

    10. If overhauling or replacing the engine, cut the fuel supply after reassembly and crank the engine for 30 seconds to distribute oil throughout the engine.

      Then reconnect the fuel supply and allow the engine to idle for 60 seconds.

    11. Since the turbine wheel runs at an extremely high speed, if the engine is running without the air cleaner, air cleaner cap and hose, the turbine wheel will be damaged due to the entry of foreign particles.

    12. When a new turbocharger sub-assembly is installed, DTC P0046 is likely to be stored. Perform the following procedure to clear the DTC.


      1. Clear DTCs.

        Click here

      2. Turn the ignition switch off within 10 seconds of clearing DTCs, and wait for 30 seconds.

        Tech Tips

        The ignition switch must be turned off before DTCs are stored again.

      3. Turn the ignition switch to ON and wait for 10 seconds or more.

      4. Start the engine, fully depress and release the accelerator pedal.

      5. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.


        Powertrain > Engine and ECT > Trouble Codes

      6. Confirm that the DTCs are not stored again.