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Home >> Isuzu >> 1989 >> I-Mark LS >> Repair and Diagnosis >> Engine Performance >> System >> System/Component Tests - CARBURETED >> Emission Controls >> Mixture Control Valve >> Mixture Control Valve (MCV) Inspection
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Mixture Control Valve (MCV) Inspection

Remove air cleaner cover and element. Start engine. Disconnect MCV vacuum hose. Place fingers over MCV air inlet. Vacuum should not be present. Reconnect vacuum hose. Vacuum should be present. If problem is found, replace MCV.

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