Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the power steering pump reservoir to the power steering pump. Refer to Power Steering Reservoir Replacement - Off Vehicle (CB Series) .
  2. Install the power steering pump pulley to the power steering pump. Refer to POWER STEERING PULLEY REPLACEMENT  .
  3. Position the power steering pump to the vehicle.
  4. Install the power steering pump mounting bolts.

    Tighten  Tighten the power steering pump mounting bolts to 34 N.m (25 lb ft).

    Fig 1: Installing Power Steering Pump
    G01499329Courtesy of GENERAL MOTORS CORP.
  5. Install the wiring harness to the wiring harness retainer located on the power steering pump reservoir.
  6. Install the power steering return hose to the power steering pump.
    Fig 2: Installing Power Steering Return Hose To Power Steering Pump
    G01499330Courtesy of GENERAL MOTORS CORP.
  7. Install the power steering pressure hose to the power steering pump.
  8. Install the accessory drive belt. Refer to DRIVE BELT REPLACEMENT .
  9. Flush the power steering system. Refer to FLUSHING THE POWER STEERING SYSTEM  .
  10. Bleed the power steering system. Refer to BLEEDING THE POWER STEERING SYSTEM  .
  11. Inspect the system for leaks. Refer to POWER STEERING FLUID LEAKS  .
    Fig 3: Installing Power Steering Pressure Hose To Power Steering Pump
    G01499331Courtesy 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:

  • 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.