GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1999
🢒
GMC C-Series Medium Duty Truck B7
🢒
Transmission/Transaxle
🢒 Automatic Transmission - Allison
Transmission/Transaxle
All Description and Operation
Transmission System Description and Operation
Cleaning, Inspection, and Adjustment
Parts Cleaning and Inspection
Range Selector Pointer Adjustment
Shift Cable Adjustment
Transmission Fluid Cooler and Line Flushing
Transmission Modulator Cable Adjustment
Vacuum Modulator Inspection
Diagnostic Procedures
Dirty Fluid
Excessive Creep in First and Reverse Gears
Excessive Slip and Clutch Chatter Only One Range
Fluid Leaking into Converter Housing
Fluid Out of Fill Tube or Breather
High Stall Speed
Intermittent Buzzing Noise
Low Lubrication Pressure
Low Main Pressure in All Ranges
Low Main Pressure in First Gear
Low Stall Speed
No Response to Movement of Shift Lever
Oil Leak Diagnosis
Output Shaft Seal Fluid Leak
Rough Shifting
Shift Speed Too High
Shift Speed Too Low
Slips in All Forward Ranges
Slips in Fourth and Reverse Gear Only
Slips in Reverse and First Gear Only
Transmission Overheats in All Ranges
Vehicle Moves Backward in Neutral
Vehicle Moves Forward in Neutral
Disassembly, Overhaul, Repair, and Assembly
Case Porosity
Mechanical Specifications
Fastener Tightening Specifications
Fluid Capacity Specifications
Removal, Installation, and Replacement
External Transmission Oil Filter Replacement
Range Selector Replacement
Shift Cable Replacement
Transmission Control Module Replacement
Transmission Fluid Check
Transmission Fluid Pan and Filter Replacement
Transmission Modulator Replacement
Transmission Modulator Valve Replacement
Transmission Oil Cooler Line Replacement
Transmission Oil Level Indicator Tube Replacement
Transmission Replacement