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Home >> Isuzu >> 1987 >> Trooper II LS, 2.2 U >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> EGR System - Diesel >> Component Testing >> EGR Valve
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EGR Valve

Using vacuum pump, check vacuum diaphragm operation. Diaphragm should not "leak down" and should move to full up position at about 11.8-15.8 in. Hg. See Figure .

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