Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the power steering pulley to the power steering pump using J 25033-C.Β 
    Fig 1: Installing Power Steering Pulley
    G01581713Courtesy of GENERAL MOTORS CORP.
  2. Ensure that the axial tolerance of the power steering pulley on the power steering pump is within 0.25 mm (0.010 in).
  3. Install the drive belt. Refer to DRIVE BELT REPLACEMENT in Engine Mechanical 3.5L.
    Fig 2: Identifying Axial Tolerance Of Power Steering Pulley On Power Steering Pump
    G01581714Courtesy of GENERAL MOTORS CORP.
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:

  • 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.