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Home >> Dodge and Ram >> 1977 >> Colt Custom, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Evaporative Emissions System >> Testing >> Purge Control Valve
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Purge Control Valve

With engine stopped, remove purge hose from air cleaner and blow air into it. No air should pass through purge valve. Start engine and hold at 2000 RPM. Air should pass freely through purge valve. Replace valve if it does not respond as specified.