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Home >> Mercedes Benz >> 1984 >> 300SD >> Repair and Diagnosis >> Engine Performance >> System >> EGR System - Diesel >> Testing >> CALIFORNIA Turbo Diesel >> EGR Valve
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EGR Valve

Supply EGR valve with approx. 8 in. Hg vacuum and pull off vacuum line. If EGR valve is closing go to next test. If EGR valve is not closing, replace EGR valve.