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Home >> Isuzu >> 1987 >> Impulse Base, Automatic, AW03-72L >> Repair and Diagnosis >> Engine Performance >> System >> EGR System - Gasoline >> Operation >> Vacuum Switching Valve

Vacuum Switching Valve

The vacuum switching valve prevents operation of EGR valve until coolant temperature is over 122°F (50°C).

Fig 1: EGR System (Impulse - Turbo Models)
G36805Courtesy of ISUZU MOTOR CO.
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