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 MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 429 (SUSPENSION CONTROL SYSTEM - SUSPENSION LEVELING)COMPONENT LOCATORAUTOMATIC LEVEL CONTROL SUSPENSION COMPONENT VIEWS
2006 Pontiac G6 GTP, 2D Coupe, Standard
Automatic Level Control Suspension Component Views
2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Automatic Level Control Suspension Component Views
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| 1 | Automatic Level Control (ALC) Solenoid Valve (G67 w/o Z10) |
| 2 | ALC Harness (G67) |
| 3 | Auxiliary Power Outlet - Rear |
| 4 | Automatic Level Control (ALC) Inflator Air Switch (G67 w/o Z10) |
| 5 | Left Rear Cargo Trim Panel |
| Callout | Component Name |
|---|---|
| 1 | C306 RR Wheel Speed Sensor Harness to Rear Cross-Car Jumper Harness |
| 2 | Automatic Level Control (ALC) Sensor (G67) |
| 3 | Automatic Level Control (ALC) Compressor (G67) |
| 4 | C309 LR Wheel Speed Sensor Harness to Rear Cross-Car Jumper Harness |
| 5 | Left Rear Hub |
| 6 | Wheel Speed Sensor (WSS) - LR |
| Callout | Component Name |
|---|---|
| 1 | C306 RR Wheel Speed Sensor Harness to Rear Cross-Car Jumper Harness |
| 2 | Differential Clutch Pump Actuator Check Valve (M76) |
| 3 | C309 LR Wheel Speed Sensor Harness to Rear Cross-Car Jumper Harness |
| 4 | Automatic Level Control (ALC) Compressor (G67) |
| 5 | Automatic Level Control (ALC) Sensor (G67) |
| 6 | Wheel Speed Sensor (WSS) - LR |
| 7 | C305 Rear Cross-Car Jumper Harness to Body Harness |
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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.