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Home › Isuzu › 1984 › Trooper II 2.2 S, MSG5L › Repair and Diagnosis › Engine Performance › System › EGR System - Gasoline › Component Testing › Thermal Vacuum Valve

Thermal Vacuum Valve

  1. Remove thermal vacuum valve from engine and place sensing portion in water, 115-129°F (46-54°C).
  2. Blow through hoses connected to valve. Air should pass, indicating valve is open. If not, replace valve.
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