Operation CHARM
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Oldsmobile
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1987
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Cutlass V6-231 3.8L VIN A 2-bbl
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Repair and Diagnosis
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Transmission and Drivetrain
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Automatic Transmission/Transaxle
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Sensors and Switches - A/T
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Transmission Position Sensor/Switch
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Description and Operation
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3RD and/or 4TH Gear Switch
3RD and/or 4TH Gear Switch
Switches--mounted in the transmission--are closed unless the transmission is shifted into the relative gear.