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Home › Mitsubishi › 2003 › Montero XLS › Repair and Diagnosis › Engine Mechanical › Intake And Exhaust › On-Vehicle Service › Intake Manifold Tuning System Check

Intake Manifold Tuning System Check

  1. Warm up the engine.
  2. Disconnect the vacuum hose from the vacuum actuator, and then connect a vacuum gauge via the Tee-fitting.
    Fig 1: Connecting Vacuum Gauge
    G01849909Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  3. Start the engine and verify that a vacuum is applied to the vacuum gauge.
  4. As described in the chart below, vary the engine speed to inspect the vacuum conditions. During this inspection, verify that the rod of the vacuum actuator is operating.
    Fig 2: Checking Engine Speed To Inspect Vacuum Conditions Chart
    G01849908Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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