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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1277 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSPOWER STEERING PUMP REPLACEMENTINSTALLATION 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 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. If the vehicle has AWD, install the heat shield to the pump.
    NOTE: Refer to FASTENER NOTICE .
  2. Install the rear bracket (4) and the bolt to the pump.
    Fig 1: Installing Power Steering Pump
    G01545595Courtesy of GENERAL MOTORS CORP.
    1. Tighten 
    2. Tighten the bolt to 37 N.m (27.3 lb ft).
  3. Install the following components to the power steering pump front bracket:
    • The power steering pump
    • The 2 bolts (5,6)
    • The 2 nuts (7,8)
  4. Tighten the nuts and the bolts.
    1. Tighten 
    2. Tighten the nuts and the bolts to 37 N.m (27.3 lb ft).

    Important:  Verify the connectors are clean.

  5. Connect the PSP switch connector (3).
    NOTE: Refer to INSTALLING HOSES WITHOUT TWISTS OR BENDS NOTICE .
  6. Install the outlet pipe fitting (1) to the pump.
    1. Tighten 
    2. Tighten the fitting to 41 N.m (30.2 lb ft).
  7. Install the outlet pipe clamp bolt (2).
    1. Tighten 
    2. Tighten the bolt to 7.8 N.m (69.04 Ib. in).
  8. Install the pump inlet hose (10) to the pump.
  9. Install the hose clamp (9) to the pump inlet hose.
  10. Install the drive belt. Refer to DRIVE BELT REPLACEMENT in Engine Mechanical-1.8L (LV6) or to DRIVE BELT REPLACEMENT in Engine Mechanical -1.8L (LNK).
  11. Install the right front tire and wheel assembly. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
  12. Lower the vehicle.
    NOTE: When adding fluid or making a complete fluid change, always use the proper power steering fluid. Failure to use the proper fluid will cause hose and seal damage and fluid leaks.
  13. Fill the power steering fluid reservoir. Refer to CHECKING AND ADDING POWER STEERING FLUID  .
    NOTE: Refer to AIR IN THE POWER STEERING SYSTEM NOTICE .
  14. Bleed the power steering system. Refer to BLEEDING THE POWER STEERING SYSTEM  .
  15. Inspect the power steering system for fluid leaks. Repair as necessary.
  16. Install the right front engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - RIGHT in Body Front End.
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.