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Home >> Isuzu >> 1984 >> Impulse Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> EGR System >> Operation >> EGR Valve
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EGR Valve

Vacuum diaphragm chamber of EGR valve is connected to vacuum port in carburetor flange (through back pressure transducer and thermal valve.)

As throttle valve is opened, vacuum is applied to EGR valve. When vacuum overcomes EGR valve spring force, it opens EGR valve to allow recirculation.

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