RADIATOR (w/ EGR Cooler) ON-VEHICLE INSPECTION


  1. CHECK RADIATOR RESERVOIR CAP SUB-ASSEMBLY

    A01E1OG

    1. Measure the valve opening pressure.


      1. If there are water stains or foreign matter on O-ring 1, clean it with water and finger scouring.

      2. Check that O-ring 1 is not deformed, cracked or swollen.

      3. Apply engine coolant to O-ring 1 and rubber packing 2 before using the radiator cap tester.

      4. A01DW10E01

        When using the cap tester, tilt it more than 30°.

      5. Pump the cap tester several times, and check the maximum pressure*.

        Pump speed
        1 pump per second

        *: Even if the cap cannot maintain the maximum pressure, it is not a defect.

        Judgment criterion
        Item Specified Condition

        Standard value

        (for brand-new cap)

        93.3 to 122.7 kPa (0.95 to 1.25 kgf/cm2, 13.5 to 17.8 psi)

        Minimum standard value

        (after using cap)

        78.5 kPa (0.8 kgf/cm2, 11.4 psi)

        If the maximum pressure is less than the minimum standard value, replace the radiator reservoir cap sub-assembly.