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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1277 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSPOWER STEERING PUMP FLOW CONTROL VALVE REPLACEMENT - ON VEHICLEINSTALLATION 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.
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.
  1. Apply fluid to the spring.
  2. Install the spring to the pump.
  3. Apply fluid to the flow control valve.
  4. Install the flow control valve to the pump.
  5. Apply fluid to the gasket.
  6. Install the gasket to the union.
    NOTE: Refer to FASTENER NOTICE .
  7. Install the union to the pump.
    1. Tighten 
    2. Tighten the union to 69 N.m (50.9 lb ft).
    NOTE: Refer to INSTALLING HOSES WITHOUT TWISTS OR BENDS NOTICE .
  8. Install the outlet pipe fitting (1) to the pump.
    1. Tighten 
    2. Tighten the fitting to 41 N.m (30.2 lb ft).
  9. Install the outlet pipe clamp bolt (2).
    1. Tighten 
    2. Tighten the bolt to 7.8 N.m (69.04 Ib. in).
    Fig 1: Installing Flow Control Valve To Pump
    G01545590Courtesy of GENERAL MOTORS CORP.
  10. Install the right front tire and wheel assembly to the vehicle. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
  11. Lower the vehicle.
  12. Fill the reservoir. Refer to CHECKING AND ADDING POWER STEERING FLUID  .
  13. Inspect the power steering system for leaks. Repair as necessary.
  14. Install the right front engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - RIGHT in Body Front End.
    NOTE: Refer to AIR IN THE POWER STEERING SYSTEM NOTICE .
  15. Bleed the power steering system. Refer to BLEEDING THE POWER STEERING SYSTEM  .
RENDER: 1.0x

NO RELATED

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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.