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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1554 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSPOWER STEERING PUMP REPLACEMENT (8.1L)INSTALLATION 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 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to FASTENER NOTICE .
  1. Install the rear bracket to the power steering pump.

    Tighten 

    Tighten the rear bracket retaining nuts to 50 N.m (37 lb ft).

  2. Install the power steering pump to the vehicle.
  3. Install the pressure hose (2) to the power steering pump.

    Tighten 

    Tighten the hose fitting to 28 N.m (20 lb ft).

    4. Fig 1: Install Pressure Hose To Power Steering Pump
    G01479496Courtesy of GENERAL MOTORS CORP.
  4. Install the power steering return hoses (2,4) and retaining clamps to the power steering pump.
    Fig 2: Install Power Steering Return Hoses & Retaining Clamps
    G01479497Courtesy of GENERAL MOTORS CORP.
  5. Install the bolts (1) to the rear of the power steering pump.

    Tighten 

    Tighten the rear bolts to 50 N.m (37 lb ft).

    6. Fig 3: Install Bolts To Rear Of Power Steering Pump
    G01479498Courtesy of GENERAL MOTORS CORP.
  6. Install the power steering pump mounting bracket bolts.

    Tighten 

    Tighten the mounting bracket bolts to 50 N.m (37 lb ft).

  7. Install the bolts (2) to the front of the pump.

    Tighten 

    Tighten the power steering pump retaining bolts to 50 N.m (37 lb ft).

    8. Fig 4: Install Bolts To Front Of Power Steering Pump
    G01479499Courtesy of GENERAL MOTORS CORP.
  8. Install the filler neck to the power steering pump.
  9. Install the nut (1) and clamp (3) retaining the filler neck to the power steering pump.

    Tighten 

    Tighten the filler neck retaining nut to 25 N.m (18 lb ft).

  10. Fill and bleed the power steering system. Refer to Bleeding the Power Steering System .
Fig 5: Install Filler Neck, Retaining Clamp & Nut
G01479500Courtesy 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.