Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1525 (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 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Power Steering Pump Rear Bracket, Power Steering Pump & Mounting Bolts

Courtesy of GENERAL MOTORS CORP.

Install the following components to the power steering pump rear bracket (1):
- The power steering pump (2).
- The power steering pump front bracket (3).

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the power steering pump mounting bolts (4) to the power steering pump (2).
Tighten: Tighten the bolts to 25 N.m (18 lb ft).
Install the power steering reservoir outlet pipe/hose to the power steering pump. Refer to Power Steering Reservoir Outlet Pipe/Hose Replacement .
Install the power steering pressure hose to the power steering pump. Refer to Power Steering Pressure Pipe/Hose Replacement .
Install the power steering pump pulley. Refer to Power Steering Pulley Replacement .
Install the power steering fluid reservoir. Refer to Remote Power Steering Fluid Reservoir Replacement .
Install the Brake Pressure Modulator Valve (BPMV) bracket. Refer to Brake Pressure Modulator Valve (BPMV) Bracket Replacement in Antilock Brake System.
Install the Brake Pressure Modulator Valve (BPMV). Refer to Brake Pressure Modulator Valve (BPMV) Replacement in Antilock Brake System.
Bleed the power steering system. Refer to Bleeding the Power Steering System .

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.