Operation CHARM
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Chevy Truck
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1988
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S10/T10 P/U 2WD V6-173 2.8L
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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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Symptom Related Diagnostic Procedures
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4L60 (700-R4) Automatic Transmission
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Vibration In Reverse & Whining Noise In Park
Vibration In Reverse & Whining Noise In Park
Broken vane rings in oil pump.