Operation CHARM
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GMC Truck
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1989
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Suburban 1/2 Ton 4WD V8-350 5.7L
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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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Shift Modulator
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Technical Service Bulletins
Shift Modulator: Technical Service Bulletins
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A/T - Harsh Shift/3-4 Shift Cycling
All Technical Service Bulletins
A/T - Harsh Shift/3-4 Shift Cycling