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GMC Truck
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1993
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C 2500 Truck 2WD V8-454 7.4L
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Repair and Diagnosis
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Powertrain Management
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Transmission Control Systems
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Technical Service Bulletins
Transmission Control Systems: Technical Service Bulletins
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Customer Interest
A/T - Buzzing Noise at Idle
A/T - Buzzing Noise on Engine Shutdown
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
By Symptom
Customer Interest
A/T - Buzzing Noise at Idle
A/T - Buzzing Noise on Engine Shutdown
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
Erratic Shifting
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
Leaks
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
Noise
A/T - Buzzing Noise at Idle
A/T - Buzzing Noise on Engine Shutdown
Won't disengage
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
All Technical Service Bulletins
Computer & Controls - Scan Tool Loss of Communication
A/T - Shift Solenoid Update
A/T - Buzzing Noise at Idle
A/T - Buzzing Noise on Engine Shutdown
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
A/T - Holley Variable Pressure Control Solenoid