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Home >> Isuzu >> 1987 >> Impulse Base, Automatic, AW03-72L >> Repair and Diagnosis >> Engine Performance >> System >> EGR Function Testing - Gasoline >> Component Testing >> Thermal Vacuum Valve >> Impulse
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Thermal Vacuum Valve: Impulse

Disconnect hoses from opposite side of valve. Blow through hoses connected to valve. Ensure no continuity exists between hoses when engine is cold and valve opens when engine is warmed to 122°F (50°C).

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