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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1758 (FIXED AND MOVEABLE WINDOWS)REPAIR INSTRUCTIONSFRONT SIDE DOOR WINDOW CHANNEL REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Front Window Weatherstrip Run Channel Assembly
    GM941798Courtesy of GENERAL MOTORS CORP.
  1. Install the window weatherstrip run channel assembly.
    • Start at the lower rear corner of the window opening.
    • Press the weatherstrip run channel onto the door flange.
    • Check to make sure the channel is fully secured into the upper corners of the door frame.
  2. Install the front door trim panel. Refer to Front Side Door Trim Panel Replacement .


    Fig 1: View Of Front Door Window Run Channel
    GM939942Courtesy of GENERAL MOTORS CORP.
  1. Install the window run channel seal.
    • Install the seal to the door header flange, starting from the rear corner.
    • Install the mushroom retainers at the top ends of the metal glass run channels.
    • Install the seal legs to the metal glass run channels.
  2. Install the front door window weatherstrip run channel assembly. Refer to Front Side Door Window Channel Replacement .
  3. Install the front door window. Refer to Front Side Door Window Replacement .
  4. Install the front door sound insulator. Refer to Front Side Door Insulator Replacement .
  5. Install the front door applique. Refer to Front Door Frame Applique Replacement .
  6. Install the front door outer panel. Refer to Front Side Door Outer Panel Replacement .
RENDER: 1.0x

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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.