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 MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1473 (MANUAL TRANSMISSION - AISIN AY6)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Section 1473 (Manual Transmission - AISIN AY6)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Section 1473 (Manual Transmission - AISIN AY6)
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Fastener Tightening Specifications
- Sealers, Adhesives, and Lubricants
- Lubrication Specifications
- Transmission Clearance Specifications
- 1st and 2nd Gear Synchronizer Retaining Ring Specifications
- 3rd and 4th Gear Synchronizer Retaining Ring Specifications
- 5th Gear Synchronizer Retaining Ring Specifications
- Countershaft Front and Rear Bearing Retaining Ring Specifications
- Input Shaft Bearing Retaining Ring Specifications
- 6th Gear Retaining Ring Specifications
- Component Resistance
- Schematic and Routing Diagrams
- Component Locator
- Visual Identification
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Manual Transmission
- Scan Tool Data List
- Scan Tool Data Definitions
- DTC P0501
- DTC P0502
- DTC P0806
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the MIL/DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Procedures
- DTC P0807 or P0808
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the MIL/DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Procedures
- DTC P080A
- Clutch Pedal Position Sensor Learn
- Symptoms - Manual Transmission
- Transmission Shifts Hard
- Transmission Gear Clash When Shifting Gears
- Transmission Noisy
- Transmission Does Not Shift into One Gear
- Transmission Jumps Out of Gear
- Transmission Locked in One Gear
- Transmission Clunk on Acceleration or Deceleration
- Transmission Fluid Leak Diagnosis
- Repair Instructions - On Vehicle
- Transmission Fluid Level Inspection
- Transmission Fluid Replacement
- Transmission Control Replacement
- Transmission Control Lever Knob Replacement
- Transmission Control Mount Plate Replacement
- Mainshaft Rear Oil Seal Replacement
- Vehicle Speed Sensor Replacement
- Transmission Mount Replacement
- Backup Lamp Switch Replacement
- Transmission Mount Inspection
- Transmission Replacement
- Repair Instructions - Off Vehicle
- Transmission Disassemble
- Output Shaft Disassembly
- Input Shaft Disassembly
- Counter Gear Shaft Disassemble
- Transmission Case Disassemble
- Extension Disassemble
- Synchronizers Disassemble
- Gears and Shafts Cleaning and Inspection
- Bearings and Spacers Cleaning and Inspection
- Synchronizers Cleaning and Inspection
- Shift Shaft and Shift Fork Cleaning and Inspection
- Transmission Case Cleaning and Inspection
- Synchronizers Assemble
- Extension Assemble
- Transmission Case Assemble
- Counter Gear Shaft Assemble
- Input Shaft Assemble
- Output Shaft Assemble
- Transmission Assemble
- Description and Operation
- Special Tools and Equipment
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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.