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Home >> Plymouth >> 1988 >> Colt DL, 2D Hatchback, 1.5 K, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EGR Function Testing >> EGR Valve >> Turbo Engine
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Turbo Engine

Check vacuum lines for correct routing. Disconnect vacuum hose at EGR valve. Warm engine to operating temperature. Connect a hand-held vacuum pump to EGR valve. With engine idling, slowly apply 2-3 in. Hg. Engine RPM should drop when vacuum is applied.

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