Operation CHARM
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Buick
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1984
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Skylark V6-173 2.8L VIN Z 2-bbl HP
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Repair and Diagnosis
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Powertrain Management
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Emission Control Systems
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Early Fuel Evaporation ( EFE )
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Vacuum Check Valve
Vacuum Check Valve
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Description and Operation
Early Fuel Evaporation Check Valve (EFE-CV)
Early Fuel Evaporation Delay Valve (EFE-DV)
Testing and Inspection
