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GMC Truck
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1999
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C 2500 Truck 2WD V8-5.3L VIN T
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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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4L60-E/4T65-E Automatic Transmission
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Road Test Procedure
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Manual First
Manual First
1.
With the vehicle stopped, move the gear selector to FIRST.
2.
Accelerate the vehicle to 32 km/h (20 mph).
3.
Verify the following:
^
No upshifts occur
^
The TCC does not apply
^
There is no noticeable slip, noise, or vibration