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 625 (HVAC SYSTEM - AUTOMATIC)REPAIR INSTRUCTIONSOUTSIDE AIR QUALITY SENSOR REPLACEMENT
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Outside Air Quality Sensor Replacement
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Outside Air Quality Sensor Replacement
WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| 1 | Radiator Support Sight Shield Retainer (Qty: 6) |
| 2 | Front Compartment Front Sight Shield Assembly |
| 3 | Radiator Grille Retainer (Qty: 4) Tip: By removing these 4 retainers allows the front fascia grille flexibility to be moved forward to access the air quality sensor. |
| 4 | Air Quality Sensor Connector |
| 5 | Air Quality Sensor Bolt
CAUTION:
Refer to Fastener Caution
.
Tighten: 9 N.m (80 lb in) |
| 6 | Air Quality Sensor |
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.