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 2690 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT VIEWS &, COMPONENT CONNECTOR END VIEW INDEX)WHEELS/VEHICLE UNDERBODY COMPONENT VIEWS
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Wheels/Vehicle Underbody Component Views
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Wheels/Vehicle Underbody Component Views
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| 1 | Wheel Speed Sensor (WSS) - Right Front (JL4/JF3/JF7/JH6/JH7) |
| 2 | Chassis |
| 3 | Wheel Speed Sensor (WSS) - Left Front (JL4/JF3/JF7/JH6/JH7) |
| Callout | Component Name |
|---|---|
| 1 | Frame |
| 2 | X110 |
| 3 | Front Axle Housing |
| 4 | Front Axle Actuator (NQF/NQG/NQH/NP2) |
| Callout | Component Name |
|---|---|
| 1 | Fuel Pump and Sender Assembly - Rear (Gas +LY6) |
| 2 | Fuel Pump and Sender Assembly - Front (Gas) |
| 3 | Fuel Pump (FP) Relay - Secondary (Gas +LY6) |
| Callout | Component Name |
|---|---|
| 1 | Fuel Tank Pressure (FTP) Sensor (Gas) |
| 2 | Fuel Tank |
| 3 | Evaporative Emissions (EVAP) Canister |
| 4 | Evaporative Emissions (EVAP) Canister Vent Solenoid Valve (Gas) |
| 5 | Electronic Brake Control Module (EBCM) (JL4/JF3/JF7/JH6/JH7) |
| 6 | Fuel Line Pressure Sensor (Gas -4.3L/LMG/LY6/LC9) |
| 7 | Chassis |
| 8 | Fuel Pump and Sender Assembly - Front (Gas) |
| Callout | Component Name |
|---|---|
| 1 | Fuel Level Sensor - Secondary (-NQZ) |
| 2 | Fuel Pump |
| 3 | Fuel Level Sensor - Primary |
| Callout | Component Name |
|---|---|
| 1 | Rear Frame Assembly |
| 2 | Exhaust Gas Temperature (EGT) Sensor 2 |
| 3 | Exhaust Gas Temperature (EGT) Sensor 1 |
| 4 | DPF Differential Pressure Sensor |
| Callout | Component Name |
|---|---|
| 1 | X414 (UY2/8S3) |
| 2 | J420 (UY2) |
| 3 | Camper/Trailer Harness |
| 4 | J415 (UY2) |
| 5 | Chassis Harness |
| 6 | J416 (UY2) |
| 7 | J417 (UY2) |
| 8 | J414 (UY2) |
| 9 | J421 (UY2) |
| 10 | J410 (UY2) |
| 11 | Camper Trailer Blunt Cuts (UY2) |
| 12 | G401 |
| 13 | Trailer Connector (UY7) |
| Callout | Component Name |
|---|---|
| 1 | Rear Frame |
| 2 | Fuel System Control Module (Gas -4.3L/LMG/LY6/LC9) |
| 3 | Trailer Connector (UY7) |
| Callout | Component Name |
|---|---|
| 1 | Rear Bumper |
| 2 | Junction Block - Rear Lamps |
| 3 | Terminator Resistor |
| 4 | Trailer Connector (UY7) |
| Callout | Component Name |
|---|---|
| 1 | Trailer Connector (UY7) |
| 2 | Trailer Brake Controller Module (TBCM) (JL1) |
| 3 | Trailer Brake Controller Solid State Relay (JL1) |
| Callout | Component Name |
|---|---|
| 1 | Trailer Brake Controller Solid State Relay |
| 2 | Trailer Brake Controller Module (TBCM) |
| Callout | Component Name |
|---|---|
| 1 | Wheel Speed Sensor (WSS) - Left Rear (JL4) |
| 2 | Wheel Speed Sensor (WSS) - Right Rear (JL4) |
RENDER: 1.0x
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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.