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Home >> Dodge and Ram >> 1988 >> Colt LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EGR System >> Testing >> EGR Control Valve

EGR Control Valve

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Remove EGR valve and connect a vacuum pump. Plug other nipple(s) if equipped. Using a vacuum pump, apply 19.8 in. Hg and ensure valve holds. With 2.3 in. Hg applied, air should not blow through valve. With 6.8 in. Hg applied, air should blow through valve.