ENGINE ON-VEHICLE INSPECTION

PROCEDURE

  1. INSPECT ENGINE COOLANT

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  2. INSPECT ENGINE OIL

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  3. INSPECT BATTERY

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  4. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

    1. Remove the air cleaner cap sub-assembly.

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    2. Remove the air cleaner 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 dirt or clogs in the air cleaner filter element sub-assembly, clean it with compressed air.

      • If any dirt 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

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  6. INSPECT ENGINE IDLE SPEED

    Note:

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

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

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

    Tip:

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

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

    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. Turn the GTS on.

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

        Powertrain > Engine and ECT > Data List

        Tester Display

        Engine Speed

      5. Inspect the engine idle speed.

        Standard Engine Idle Speed

        720 to 820 rpm

      6. Fully depress the accelerator pedal.

      7. Inspect the maximum engine speed.

        Maximum Engine Speed

        5100 to 5250 rpm

      8. Turn the ignition switch off.

      9. Disconnect the GTS from the DLC3.

    3. H100769C22

      *a

      DLC3

      When not using the GTS:

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

        09843-18030

        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. Inspect the engine idle speed.

        Standard Engine Idle Speed

        720 to 820 rpm

      4. Fully depress the accelerator pedal.

      5. Inspect the maximum engine speed.

        Maximum Engine Speed

        5100 to 5250 rpm

      6. Turn the ignition switch off.

      7. Disconnect the tachometer probe from the DLC3.

  7. INSPECT COMPRESSION

    1. Warm up and stop the engine.

    2. Disconnect the 4 connectors from the 4 injectors.

    3. Remove the 4 glow plug assemblies.

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      Note:

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

    4. Inspect the cylinder compression pressure.

      1. A294402C01

        *1

        SST (Attachment)

        Insert SST (attachment) into the glow plug hole.

        09992-00026

        09992-00121

      2. A294403C01

        *1

        SST (Compression Gauge)

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

        09992-00026

        09992-00211

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

        Standard Compression Pressure

        2500 kPa (25.5 kgf/cm2, 363 psi)

        Minimum 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 to obtain an engine speed of 280 rpm or more.

        • Inspect the other cylinders in the same way.

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

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

        Tip:

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

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

    5. Remove SST (attachment and compression gauge).

    6. Connect the 4 connectors to the 4 injectors.

    7. Install the 4 glow plugs.

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