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Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Intake / Exhaust System (1AR-FE) (Service Information) (Except Hybrid)) >> Intake Manifold >> Inspection [12/2013 - ] >> Procedure

Inspection [12/2013 - ]: Procedure

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  1. INSPECT INTAKE AIR CONTROL VALVE (for ACIS) 
    1. Inspect the diaphragm.
      1. Using a vacuum pump, apply a vacuum of 60 kPa (450 mmHg, 17.7 in.Hg) or higher to the diaphragm chamber. Check that there is no change in vacuum after 1 minute.
        GTY443482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        If the result is not as specified, replace the intake manifold.

      2. After applying vacuum in the step above, check that the actuator rod operates.

        If the operation is not as specified, replace the intake manifold.

  2. INSPECT VACUUM TANK AND NO. 1 CHECK VALVE 
    1. Disconnect the vacuum hose from the No. 1 check valve.
      GTY195105Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a vacuum pump, apply vacuum to the No. 1 check valve. Check that there is no change in vacuum after 1 minute.

      If the result is not as specified, replace the No. 1 check valve.

    3. Connect the vacuum hose to the No. 1 check valve.
    4. Using a vacuum pump, apply a vacuum of 60 kPa (450 mmHg, 17.7 in.Hg) or higher to the vacuum tank. Check that there is no change in vacuum after 1 minute.
      GTY185682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the intake manifold.

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