ENGINE ON-VEHICLE INSPECTION

PROCEDURE

  1. INSPECT ENGINE COOLANT

  2. INSPECT ENGINE OIL

  3. INSPECT BATTERY

  4. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

    1. Remove the air cleaner cap sub-assembly.

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    2. Remove the air filter element sub-assembly.

    3. Visually check that the air cleaner filter element sub-assembly is not excessively damaged or oily. If necessary, replace the air cleaner filter element sub-assembly.

      Tip:
      • If there is any foreign matter or clogs in the air cleaner filter element sub-assembly, clean it with compressed air.

      • If any foreign matter or clogs remain even after cleaning the air cleaner filter element sub-assembly with compressed air, replace it.

    4. Install the air cleaner filter element sub-assembly.

    5. Install the air cleaner cap sub-assembly.

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  5. INSPECT V-RIBBED BELT

  6. INSPECT ENGINE SPEED

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

    • Inspect the engine idle speed with the cooling fan off.

    • When checking the idle speed, the transaxle should be in neutral.

    1. Warm up and stop the engine.

    2. When using the GTS:

      1. Connect the GTS to the DLC3.

      2. Turn the ignition switch to ON.

      3. Start the engine.

      4. Turn the GTS on.

      5. Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed.

        Powertrain > Engine and ECT > Data List

        Tester Display

        Engine Speed

      6. Inspect the engine idle speed.

        Standard Idle Speed

        720 to 820 rpm

      7. Fully depress the accelerator pedal.

      8. Inspect the maximum engine speed.

        Maximum Speed

        5150 to 5250 rpm

      9. Turn the ignition switch off.

      10. Disconnect the GTS from the DLC3.

    3. H103026N01

      When not using the GTS:

      1. Using SST, connect a tachometer probe to terminal 9 (TAC) of the DLC3.

        09843-18040

        Note:

        Be sure to connect the tachometer to the correct terminal. Connecting the wrong terminals can cause damage.

      2. Turn the ignition switch to ON.

      3. Start the engine.

      4. Inspect the engine idle speed.

        Standard Idle Speed

        720 to 820 rpm

      5. Fully depress the accelerator pedal.

      6. Inspect the maximum engine speed.

        Maximum Speed

        5150 to 5250 rpm

      7. Turn the ignition switch off.

      8. Disconnect the tachometer probe from terminal 9 (TAC) of the DLC3.

  7. INSPECT COMPRESSION

    1. Warm up and stop the engine.

    2. A236898

      Disconnect the 4 connectors from the 4 injector assemblies.

    3. Remove the 4 glow plug assemblies.

      Click here

      Note:

      In order to avoid shorting the circuit of the wire harness connected to the glow plug No. 1 connector, wind vinyl tape around the wire harness terminal portion.

    4. A293331

      Remove the bolt and separate the No. 3 engine cover bracket.

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

    6. Crank the engine to remove foreign matter before measuring the compression.

    7. A295552C02

      *a

      SST (Attachment)

      Install the SST (attachment) into the glow plug assembly hole.

      09992-00026

      09992-00121

      09992-00160

      13 N*m

      133 kgf*cm

      10 ft.*lbf

    8. A295551C02

      *a

      SST (Compression Gauge)

      Connect a SST (compression gauge) to the SST (attachment).

      09992-00026

      09992-00211

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

      Compression Pressure

      2300 kPa (23.5 kgf/cm2, 334 psi)

      Minimum Pressure

      2050 kPa (20.9 kgf/cm2, 297psi)

      Difference Between Each Cylinder

      500 kPa (5.1 kgf/cm2, 73 psi) or less

      Note:
      • Use a fully-charged battery so that the engine speed can be increased to 250 rpm or more.

      • Inspect the other cylinders in the same way.

      • Measure the compression pressure in as short a time as possible.

      If the cylinder compression is low, pour a small amount of engine oil into the cylinder through the glow plug assembly hole, and then inspect it again.

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

      • If the compression pressure stays low, a valve may be stuck or seated improperly, or there may be leaks in the cylinder head gasket.

    10. Remove the SST (compression gauge and attachment).

    11. Install the No. 3 engine cover bracket with the bolt.

      9.0 N*m

      92 kgf*cm

      80 in.*lbf

    12. Install the 4 glow plug assemblies.

      Click here

    13. Connect the 4 connectors to the 4 injector assemblies.