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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 909 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSPOWER STEERING PUMP REPLACEMENT (2.2L)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 Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the power steering pump.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the power steering pump front mounting bolts.

    Tighten 

    Tighten the power steering pump front mounting bolts to 30 N.m (22 lb ft).

  3. Install the power steering pump rear mounting bracket bolt.
  4. Install the power steering pump rear mounting bracket nuts to the engine studs.

    Tighten 

    Tighten the power steering pump rear mounting bracket bolt and nuts to 50 N.m (37 lb ft).

    Fig 1: Power Steering Pump Rear Mounting Bracket Bolts & Nuts
    G01467147Courtesy of GENERAL MOTORS CORP.
  5. Install the A/C compressor to the accessory bracket.
  6. Install the A/C compressor rear bracket mounting bolts.

    Tighten 

    Tighten the A/C compressor rear bracket mounting bolts to 31 N.m (23 lb ft).

  7. Install the A/C compressor mounting bolts.

    Tighten 

    Tighten the A/C compressor mounting bolts to 50 N.m (37 lb ft).

    Fig 2: A/C Compressor Rear Bracket Mounting Bolts
    G01467148Courtesy of GENERAL MOTORS CORP.
  8. Connect the A/C compressor electrical connection.
  9. Install the power steering pump pulley. Refer to POWER STEERING PULLEY REPLACEMENT .
  10. Install the drive belt. Refer to DRIVE BELT REPLACEMENT in Engine Mechanical 2.2L.
    Fig 3: Connecting A/C Compressor Electrical Connection
    G01467149Courtesy of GENERAL MOTORS CORP.
  11. Install the power steering pump hoses.
  12. Install the upper fan shroud. Refer to FAN SHROUD REPLACEMENT in Engine Cooling.
  13. Fill the power steering system.
  14. Bleed the system. Refer to BLEEDING THE POWER STEERING SYSTEM .
  15. Inspect the hoses for clearance away from the frame and other components.
Fig 4: Power Steering Pump Hoses
G01467150Courtesy 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.