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 1027 (ANTI-LOCK BRAKE SYSTEM, TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEM)COMPONENT LOCATORANTILOCK BRAKE SYSTEM CONNECTORSBRAKE BOOSTER VACUUM SENSOR (JL4)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Brake Booster Vacuum Sensor (JL4)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Brake Booster Vacuum Sensor (JL4)
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Brake Booster Vacuum Sensor (JL4) Connector Parts Information
Connector Part Information
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Terminal Part Information
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Brake Booster Vacuum Sensor (JL4) Connector Terminal Identification
| Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
| 1 | 0.5 OG | 6030 | Brake Booster Vacuum Sensor Signal |
| 2 | 0.5 YE/BK | 6032 | Low Reference |
| 3 | 0.5 GY | 6044 | 5-Volt Reference |
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.