Operation CHARM
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1987
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Riviera V6-231 3.8L
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Distributor
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Distributor Retard Control
Distributor Retard Control
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Description and Operation
Distributor Spark Vacuum Retard Delay Valve (DS-VRDV)
Spark Retard Delay Valve (SRDV)
