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GMC Truck
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2010
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Sierra 2500 2WD V8-6.0L
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Transmission and Drivetrain
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Differential Assembly
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Diagnosis By Symptom - Front Drive Axle
Diagnosis By Symptom - Front Drive Axle
Four-Wheel Drive Does Not Engage
Important:
Before performing the following diagnostic procedure, ensure that all electrical diagnostic procedures have been performed and there are no DTCs.