Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Air Temperature Sensor-Lower Right
    GM759907Courtesy of GENERAL MOTORS CORP.
  1. Install the air temperature sensor-lower right (2).
  2. Connect the electrical connector (3) to the air temperature sensor-lower right (2).
  3. Install the I/P lower closeout panel. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - INSTRUMENT PANEL (I/P) LOWER (GMC/CHEVROLET) in Instrument Panel, Gages and Console.
  4. Install the passenger side closeout panel. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - RIGHT in Instrument Panel, Gages and Console.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.