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 MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 840 (HVAC SYSTEMS - AUTOMATIC)REPAIR INSTRUCTIONSAIR TEMPERATURE SENSOR REPLACEMENT - LOWER RIGHTINSTALLATION PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Install the lower right air temperature sensor (1).
Connect the electrical connector to the lower right air temperature sensor (1).
Install the center console. Refer to CONSOLE REPLACEMENT (WITH CONSOLE MOUNTING BRACKET) or CONSOLE REPLACEMENT (W/O CONSOLE MOUNTING BRACKET) in INSTRUMENT PANEL, GAGES, AND CONSOLE .
Install the right floor duct. Refer to AIR OUTLET DUCT REPLACEMENT - FLOOR, RH in HEATING, VENTILATION AND AIR CONDITIONING .
Install the I/P lower closeout panel. Refer to INSULATOR REPLACEMENT - INSTRUMENT PANEL (I/P) in INSTRUMENT PANEL, GAGES, AND CONSOLE .

Fig 1: Installing Air Temperature Sensor - Lower Right
Courtesy of GENERAL MOTORS CORP.

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.