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Home >> Subaru >> 2003 >> Impreza TS, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul >> Line Pressure Test >> Measurement >> Test Methods

Test Methods

  1. Temporarily attach the ST to a suitable place in the driver's compartment, remove the blind plug located in front of the toe board and pass the hose of the ST to engine compartment.

    ST 498575400 OIL PRESSURE GAUGE ASSY

    Fig 1: Removing Blind Plug
    G01998775Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the test plug and install the ST instead.

    ST 498897200 OIL PRESSURE GAUGE ADAPTER

    Fig 2: Removing Test Plug & Installing ST
    G01998776Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the ST1 with ST2.
    1. ST1 498897200 OIL PRESSURE GAUGE ADAPTER
    2. ST2 498575400 OIL PRESSURE GAUGE ASSY
  4. Check for duty ratio changes by opening and closing the throttle valve using Subaru Select Monitor.
    1. Insert the cartridge into Subaru Select Monitor. See PREPARATION TOOL , General Description.
      Fig 3: Inserting Cartridge Into Subaru Select Monitor
      G01998777Courtesy of SUBARU OF AMERICA, INC.
    2. Connect the Subaru Select Monitor to data link connector.
  5. Check the line pressure in accordance with the following chart.
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