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Home >> Isuzu >> 1984 >> Impulse Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EGR System >> Component Testing >> Thermal Vacuum Valve

Thermal Vacuum Valve

  1. Remove thermal vacuum valve from engine and place sensing portion in water, 97-111°F (36-44°C).
  2. Blow through hoses connected to valve. Air should pass, indicating valve is open. If not, replace valve.
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