Operation CHARM
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GMC Truck
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1991
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Jimmy Full Size V8-350 5.7L
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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
TCC - False Code 32/ Possible MIL ON
Drivetrain - Slow Or No Engagement of Front Axle
Overview
Service Procedure
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
By Symptom
Customer Interest
TCC - False Code 32/ Possible MIL ON
Drivetrain - Slow Or No Engagement of Front Axle
Overview
Service Procedure
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
Erratic Shifting
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
False instrument warning light/gauges
TCC - False Code 32/ Possible MIL ON
Leaks
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
Won't disengage
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
All Technical Service Bulletins
TCC - False Code 32/ Possible MIL ON
A/T - Shift Solenoid Update
Drivetrain - Slow Or No Engagement of Front Axle
Overview
Service Procedure
A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
A/T - Holley Variable Pressure Control Solenoid