Operation CHARM
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Oldsmobile
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1988
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Cutlass Supreme RWD V8-307 5.0L
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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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Testing and Inspection
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Initial Inspection and Diagnostic Overview
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Manual Gear Range Selection
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Manual 1ST
Manual 1ST
With vehicle stopped, place gear selector in 1st gear, accelerate to 15 mph and observe that no upshift occurs and
TCC
does not engage.