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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 585 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSPOWER STEERING GEAR 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 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the power steering gear through the left wheel opening.
    Fig 1: Power Steering Gear
    G01720141Courtesy of GENERAL MOTORS CORP.
  2. Install the power steering gear mounting bolts and nuts (1,4).

    Tighten: 

    Tighten the power steering gear mounting bolts to 80 N.m (59 ft lbs) 

  3. Inspect the threads on the power steering pressure hose and the power steering return hose.
  4. Inspect the O-ring seals on the power steering hoses.
  5. Replace the seals if damaged, lubricate the seals before installation.
  6. Install the clamp that holds the power steering hoses to the power steering gear.
  7. Install the Magnasteer Variable Assist electrical connector to the power steering gear assembly, if equipped with variable effort steering.
  8. Install the power steering pressure hose to the power steering gear. Refer to Power Steering Pressure Hose Replacement (3.1L)  or Power Steering Pressure Hose Replacement (3.8L)  .
  9. Install the power steering return hose to the power steering gear. Refer to Power Steering Return Hose Replacement (3.1L)  or Power Steering Return Hose Replacement (3.8L)  .
  10. Raise the frame into position (3).
  11. Install NEW rear frame bolts.
    Fig 2: Frame Assembly
    G01720142Courtesy of GENERAL MOTORS CORP.
  12. Remove the jackstands.
  13. Install the tie rod ends to the steering knuckles. Refer to Tie Rod End Replacement - Outer .
    NOTE: Set steering shaft so the block tooth on the upper steering shaft is at the 12 o'clock position, the wheels on the vehicle are straight ahead and set the ignition switch to the LOCK position. Failure to follow these procedures could result in damage to the coil.
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.