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.
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedFACTORY OEM SERVICE PROCEDURE
Knock Sensor (KS) 2
Knock Sensor (KS) 2
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| A | 0.8 L-BU | 1876 | Knock Sensor (KS) 2 Signal (LMF/LY2/LY6) |
| 0.5 L-BU | 1876 | Knock Sensor (KS) 2 Signal (LU3) | |
| B | 0.8 GY | 2303 | Knock Sensor (KS) 2 Signal (LMF/LY2/LY6) |
| 0.5 GY | 2303 | Knock Sensor (KS) 2 Signal (LU3) |
Connector Part Information
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Terminal Part Information
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Factory Service Tools
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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.
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