Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 943 (AUTOMATIC TRANSMISSION - ALLISON - UNIT REPAIR OVERHAUL)
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Section 943 (Automatic Transmission - ALLISON - Unit Repair Overhaul)
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Section 943 (Automatic Transmission - ALLISON - Unit Repair Overhaul)
WARNING: This page is about a different car, the 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, 2001 Chevrolet Silverado, and 2001 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Fastener Tightening Specifications
- Fluid Capacity Specifications
- End Play Specifications
- Selective Components Specifications
- Oil Pump Specifications
- Transmission General Specifications (Transmission Weight)
- Transmission General Specifications (Transmission Gear Ratio)
- Transmission General Specifications (F Trim Solenoid)
- Transmission General Specifications (C, D, E Solenoids)
- Transmission General Specifications (Wear Limits)
- Component Locator
- Disassembled Views
- Torque Converter Clutch/Converter Housing Assembly
- Torque Converter Housing/Oil Pump Cover Assembly
- Oil Pump Assembly
- Front Support
- Front Support Module
- 1-2-3-4, 4-5 Clutch Assembly
- Converter Housing/Main Housing and Associated Components
- Automatic Transmission Case
- 2nd Clutch/Low and Reverse Clutch
- Input Carrier and Ring Gear Assembly, Intermediate Carrier and Ring Gear Assembly, Main Shaft
- Input Carrier and Ring Gear Assembly
- Intermediate Carrier and Ring Gear Assembly
- Input Carrier Assembly
- Intermediate Carrier Assembly
- Output Carrier Assembly, Output Shaft, Low and Reverse Clutch Return Spring Assembly, Park Pawl
- Low and Reverse Clutch Piston Housing
- Output Carrier Assembly
- Low and Reverse Clutch Housing Assembly, 2WD
- Low and Reverse Clutch Housing Assembly, 4WD
- Control Valve Body
- Shift Valve Body
- Main Valve Body Assembly
- Automatic Transmission Electronic Component Views
- Component Location
- Disassembled Views
- Automatic Transmission Overhaul
- Holding Fixture Installation
- Input Speed Sensor Removal
- Turbine Speed Sensor Removal
- Output Speed Sensor Removal (2WD)
- Park/Neutral Position Switch Removal
- Transmission Vent Removal
- Torque Converter Assembly Removal
- Torque Converter Housing with Fluid Pump Assembly Removal
- 1-2-3-4, 4-5 Clutch Housing Assembly Removal
- Transmission Fluid Pan and Filter Assembly Removal
- Wiring Harness Removal
- Control Valve Assembly Removal
- Rear Ball Bearing Removal
- Low and Reverse Clutch Piston and Output Carrier Assembly Removal
- Intermediate Carrier and Main Shaft Removal
- Low and Reverse Clutch Removal
- Input Carrier Removal
- 2nd Clutch Removal
- 2nd Clutch Piston Removal
- 3rd, 5th and Reverse Clutch Removal
- 3-5-Reverse Clutch Piston Removal
- Torque Converter Housing from Pump Assembly Disassemble
- Main Pump Disassemble
- Main Pump Inspection
- Oil Pump Locating Pin Replacement
- Main Pump Assemble
- Front Support Disassemble
- Stator Shaft Inspection
- Stator Shaft Replacement
- Stator Shaft Needle Bearing Replacement
- Stator Shaft Bushing Replacement
- Oil Pump Cover Thrust Washer Inspection
- Front Support Assemble
- 1-2-3-4, 4-5 Clutch Housing Disassemble
- Turbine Shaft Bushing Inspection
- Turbine Shaft Bushing Replacement
- 1-2-3-4, 4-5 Clutch Housing Inspection
- 1-2-3-4, 4-5 Clutch Housing Bushing Replacement (Installation)
- 1-2-3-4, 4-5 Clutch Housing Reluctor Wheel Replacement
- 1-2-3-4 Clutch Fiber Plate Inspection
- 1-2-3-4 Clutch Steel Plate Inspection
- 1-2-3-4 Clutch Backing Plate Inspection
- 1-2-3-4 Clutch Piston Inspection
- 4-5 Clutch Fiber Plate Inspection
- 4-5 Clutch Steel Plate Inspection
- 1-2-3-4, 4-5 Clutch Housing Assemble (Rotating Clutch Assemble)
- 1-2-3-4, 4-5 Clutch Housing Assemble (Rotating Clutch Thrust Washer Inspect)
- Main Housing Disassemble
- Manual Shift Shaft, Detent Lever, and Position Switch Assembly Disassemble
- Manual Shift Shaft, Detent Lever, and Position Switch Assembly Assemble
- Emblem/Nameplate Replacement
- 3rd, 5th and Reverse Clutch Plate Inspection
- 3rd, 5th and Reverse Clutch Backing Plate Inspection
- 3rd, 5th and Reverse Clutch Backing Plate Replacement
- 2nd Clutch Plate Inspection
- 2nd Clutch Backing Plate Inspection
- Low and Reverse Clutch Plate Inspection
- Low and Reverse Clutch Backing Plate Inspection
- Input Internal Ring Gear Inspection
- Main Shaft Cleaning and Inspection
- Input Carrier Assembly Disassemble
- Input Carrier Assembly Inspection
- Input Carrier Bushing Replacement
- Input Carrier Thrust Washer Inspection
- Input Carrier Assembly Assemble
- Intermediate Internal Gear Inspection
- Intermediate Carrier Assembly Disassemble
- Intermediate Carrier Assembly Inspection
- Intermediate Carrier Bushing Replacement
- Intermediate Carrier Assembly Assemble
- Output Carrier Internal Gear Inspection
- Output Carrier Inspection
- P3 Planetary Assemble
- Output Shaft Thrust Bearing Race Replacement
- Low and Reverse Clutch Housing Assembly Disassemble
- Low and Reverse Clutch Housing Retaining Ring Replacement
- Two-Wheel-Drive Output Shaft Bushing Inspection
- Four-Wheel-Drive Output Shaft Bushing Inspection
- Output Shaft Bushing Replacement
- Low and Reverse Clutch Housing Assembly Assemble
- Output Yoke Inspection
- Control Valve Assembly Disassemble
- Shift Solenoid Valve Disassemble
- Pressure Control Valve Retaining Bracket Inspection
- Shift Solenoid Valve Assemble
- Main Valve Body Disassemble
- Control Valve Body Locating Pin Replacement
- Main Valve Body Assemble
- Control Valve Assembly Assemble
- 3rd, 5th and Reverse Clutch Installation
- Input Carrier Assembly and 2nd Clutch Installation
- Low and Reverse Clutch Steel Plate Selection
- Intermediate Carrier Assembly and Main Shaft Installation
- Low and Reverse Clutch Installation
- Park Pawl Installation
- Output Shaft and Output Carrier Assembly Installation
- Low and Reverse Clutch Piston Housing Installation
- Control Valve Assembly Installation
- Wiring Harness Installation
- Transmission Fluid Pan and Filter Assembly Installation
- 1-2-3-4, 4-5 Clutch Housing Assembly Installation
- Torque Converter Housing with Fluid Pump Assembly Installation
- Two-Wheel-Drive Low and Reverse Clutch Housing Spacer Measurement
- Four-Wheel-Drive Low and Reverse Clutch Housing Spacer Measurement
- Transmission End Play Measurement
- Torque Converter Assembly Installation
- Park/Neutral Position Switch Installation
- Rear Oil Seal Installation (2WD)
- Four-Wheel-Drive Output Shaft Retaining Nut Installation
- Transmission Vent Installation
- Input Speed Sensor Installation
- Turbine Speed Sensor Installation
- Output Speed Sensor Installation (2WD)
- Holding Fixture Removal
- Description And Operation
- Special Tools And Equipment
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.