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)COMPONENT LOCATORDISASSEMBLED VIEWSAUTOMATIC TRANSMISSION CASE
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Automatic Transmission Case
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Automatic Transmission Case
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.
| Callout | Component Name |
|---|---|
| 1 | Automatic Transmission Case |
| 2 | Transmission Case Locating Pin |
| 3 | Transmission Vent Assembly |
| 4 | Transmission Vent Cap |
| 5 | Transmission Vent |
| 6 | Nameplate Rivet |
| 7 | Nameplate |
| 8 | Vehicle Speed Sensor Bolt, M6 x 1.0 x 13 |
| 9 | Sensor Shipping Cover |
| 10 | Turbine Speed Sensor |
| 11 | Vehicle Speed Sensor O-Ring |
| 12 | Power Take-Off (PTO) Cover Gasket (2) |
| 13 | PTO Cover (2) |
| 14 | PTO Cover Bolt, M10 x 1.5 x 20, Flanged Head, Coated (12) |
| 15 | Park/Neutral Position (PNP) Switch |
| 16 | Shift Lever Nut |
| 17 | PNP Switch Bolt, M8 x 1.25 x 20 (2) |
| 18 | Front Splash Shield |
| 19 | Manual Shift Shaft |
| 20 | Manual Shift Shaft Seal |
| 21 | Manual Shift Shaft Pin |
| 22 | Manual Shift Shaft Detent Lever |
| 23 | Park Pawl Assembly |
| 24 | Control Valve Body Locating Pin |
| 25 | Manual Shift Shaft Nut, M10 x 1.50 |
| 26 | Connector Shipping Cover |
| 27 | Control Valve Body Assembly |
| 28 | Control Valve Body Bolt, M6 x 1.0 x 50, Flanged Head (15) |
| 29 | Manual Shift Shaft Detent Spring |
| 30 | Manual Shift Shaft Detent Spring Bolt M6 x 1.0 x 12. Flanged Head (2) |
| 31 | Transmission Wiring Harness Assembly |
RENDER: 1.0x
NO RELATED
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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.