Operation CHARM
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Oldsmobile
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1984
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Toronado V8-307 5.0L
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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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Thermal Vacuum Valve
Thermal Vacuum Valve
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Description and Operation
Early Fuel Evaporation Distributor TVS (EFE-DTVS)
Early Fuel Evaporation Thermal Vacuum Switch (EFE-TVS)
EGR/EFE/Elec Module Retard Distributor TVS (EGR-EFE-EMR-DTVS)
EGR Early Fuel Evaporation Thermal Vacuum Switch (EGR-EFE-TVS)
Testing and Inspection
