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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1451 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSPOWER STEERING PUMP REPLACEMENT (4.2L)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 4.2L.
  2. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.2L.
  3. Install a drain pan under the vehicle.
  4. Disconnect the power steering pressure hose (1) from the power steering pump.
    Fig 1: Disconnecting/Connecting Power Steering Hoses
    GM687439Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the power steering cooler hose (2) from the power steering pump.
  6. Disconnect the wiring harness from the wiring loom on the power steering pump.
    7. Fig 2: Removing/Installing Power Steering Pump
    GM687444Courtesy of GENERAL MOTORS CORP.
  7. Remove the power steering pump mounting bolts.
  8. Remove the power steering pump.
  9. Remove the power steering pump pulley. Refer to Power Steering Pulley Replacement (5.3L)  or Power Steering Pulley Replacement (4.2L) .
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.