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Home >> Isuzu >> 1985 >> I-Mark 2D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> System >> EGR System - Diesel >> Operation >> EGR Valve
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EGR Valve

Vacuum diaphragm chamber of EGR valve is connected to a vacuum pump through vacuum switching valve(s). Vacuum switching valve(s) allow vacuum to reach EGR valve when opened by signals from EGR controller. When vacuum overcomes EGR valve spring force, it opens EGR valve to allow recirculation.

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