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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 802 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSSTEERING GEAR THRUST SUPPORT REPLACEMENT - OFF VEHICLEASSEMBLY PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Assembly Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Assembly Procedure
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Important:  Install a new O-ring seal each time the thrust support assembly is removed from the steering gear.

  1. Lubricate the new O-ring seal (3).
  2. Install the new O-ring seal (3) on the thrust support assembly (2).
  3. Install the thrust support assembly (2).
    Fig 1: Installing Thrust Support Assembly & O-Ring Seal
    G01662246Courtesy of GENERAL MOTORS CORP.
  4. Connect the adjuster nut assembly (2) to the steering gear housing (1) using J 42882  .
  5. Install the coupling shield retainer and the lock nut (1) to the adjuster nut assembly.
  6. Refer to Worm Thrust Bearing Preload Adjustment - Off Vehicle  to adjust the thrust bearing preload.
    Fig 2: Installing Adjuster Nut Assembly
    G01662247Courtesy of GENERAL MOTORS CORP.
  7. Hold the adjuster nut assembly in position to maintain alignment of the marks.
    CAUTION: Refer to FASTENER NOTICE .
  8. Tighten the coupling shield retainer and the lock nut using J 43435  and a torque wrench.

    Tighten 

    Tighten the retainer and the lock nut to 109 N.m (80 lb ft).

    Fig 3: Identifying J 42882 & J 43435
    G01662248Courtesy 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.