Operation CHARM
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GMC Truck
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1986
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S15/T15 2WD P/U L4-151 2.5L
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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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Component Tests and General Diagnostics
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Speedometer Fitting
Speedometer Fitting
1. Low bolt torque.
2. Seal missing, cut or damaged.