ENGINE ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT ENGINE IDLE SPEED

    Note


    • Turn all the electrical systems and the A/C off.

    • When checking the idle speed, move the shift lever to neutral.

    Tech Tips


    • For more information about the GTS, refer to its operator's manual.

    • If an GTS is not available, use a tachometer tester probe as a substitute.


    1. When using the GTS:


      1. Warm up the engine.

      2. Connect the GTS to the DLC3.

      3. Enter the following menus:

        Powertrain / Engine / Data List / Engine Speed.

        Tech Tips

        Refer to the GTS operator's manual for help selecting the Data List.

      4. Inspect the engine idle speed.

        Standard Idle Speed
        Item Specified Condition
        for Automatic Transmission 550 to 750 rpm
        for Manual Transmission 500 to 600 rpm

      5. Disconnect the GTS from the DLC3.

    2. When not using the GTS:


      1. Warm up and stop the engine.

      2. A01X905E02
        Text in Illustration
        *a Front view of DLC3

        Connect a tester probe of a tachometer to terminal 9 (TAC) of the DLC3 with SST.

        SST
        09843-18040

      3. Inspect the engine idle speed.

        Standard Idle Speed
        Item Specified Condition
        for Automatic Transmission 550 to 750 rpm
        for Manual Transmission 500 to 600 rpm

      4. Disconnect the tester probe from terminal 9 (TAC) of the DLC3.

  2. INSPECT MAXIMUM ENGINE SPEED


    1. Start the engine.

    2. Fully depress the accelerator pedal.

    3. Check the maximum engine speed.

      Maximum engine speed
      4700 to 4900 rpm

  3. INSPECT COMPRESSION


    1. Warm up and stop the engine.

    2. Disconnect the cable from the negative (-) battery terminal.

    3. Remove the No. 1 glow plug connector.


      1. w/ Intercooler:

        Remove the intercooler assembly Click here.

      2. Remove the injection pipes Click here.

      3. Remove the No. 1 glow plug connector.

      4. Reinstall the injection pipes Click here.

    4. Remove the 8 glow plugs Click here.

    5. Disconnect all connectors from the 8 injectors.

    6. Connect the cable to the negative (-) battery terminal.

    7. Inspect the cylinder compression pressure.


      1. A01WZX4E02
        Text in Illustration
        *1 SST (Compression Gauge)
        *2 SST (Attachment)

        Insert SST (attachment) into the glow plug hole.

        SST
        09992-00026   ( 09992-00410, 09992-00211 )
        Torque:
        13 N*m  { 133 kgf*cm, 10 ft.*lbf }

      2. Connect SST (compression gauge) to SST (attachment).

      3. While cranking the engine, measure the compression pressure.

        Standard compression pressure (normal condition)
        2700 kPa (27.5 kgf/cm2, 392 psi)
        Minimum compression pressure
        2200 kPa (22.4 kgf/cm2, 319 psi)
        Difference between each cylinder
        500 kPa (5.1 kgf/cm2, 73 psi) or less

        Note


        • Use a fully-charged battery so the engine speed can be increased to 280 rpm or more.

        • Inspect the other cylinders in the same way.

        • Measure the compression as quickly as possible.

      4. If the cylinder compression is low, pour a small amount of engine oil into the cylinder through the glow plug holes. Then inspect the cylinder compression again.

        If adding oil increases the compression pressure, the piston rings and/or cylinder bore may be worn or damaged.

        If the pressure stays low, the valve may be stuck or seated improperly, or there may be leakage from the gasket.

      5. Remove SST (attachment and compression gauge).

    8. Disconnect the cable from the negative (-) battery terminal.

    9. Connect all connectors to the 8 injectors.

    10. Install the 8 glow plugs Click here.

    11. Install the No. 1 glow plug connector.


      1. Remove the injection pipes Click here.

      2. Reinstall the No. 1 glow plug connector.

      3. Install the injection pipes Click here.

      4. w/ Intercooler:

        Install the intercooler assembly Click here.