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 G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 67 (SUSPENSION CONTROL SYSTEM - SUSPENSION LEVELING)DIAGNOSTIC INFORMATION AND PROCEDURESSCAN TOOL DATA LIST
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Scan Tool Data List
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Scan Tool Data List
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Scan Tool Data List
| Scan Tool Parameter | Data List | Units Displayed | Typical Data Value |
|---|---|---|---|
| Operating Conditions: Park brake set with ignition switch ON | |||
| Battery Voltage | Data Display | Volts | 12-14.7 |
| Compressor Signal | Data Display | ON/OFF | OFF |
| Exhaust Signal | Data Display | ON/OFF | OFF |
| Left Rear Position Sensor Signal | Data Display | Volts | 0.5-4.85 |
| Position Sensor Supply Voltage | Data Display | Volts | 4.85 |
| Pressure Sensor Supply | Data Display | Volts | 4.85 |
| Pressure Sensor Signal | Data Display | Volts | 0.15-4.85 |
| Right Rear Position Sensor Signal | Data Display | Volts | 0.5-4.85 |
| System Air Pressure | Data Display | KPA/PSI | Varies |
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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.