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 1277 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSPOWER STEERING PUMP FLOW CONTROL VALVE REPLACEMENT - ON VEHICLEREMOVAL PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal 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.

Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
Remove the right front tire and wheel assembly from the vehicle. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION in Tires and Wheels.
Remove the right front engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - RIGHT in Body Front End.
Remove the bolt (2) from the power steering pump outlet pipe bracket.

Fig 1: Removing Power Steering Pump Flow Control Valve
Courtesy of GENERAL MOTORS CORP.
Place a drain pan under the vehicle in order to catch the draining fluid.
NOTE: Refer to POWER STEERING HOSE DISCONNECTED NOTICE .
Remove the outlet pipe fitting (1) from the pump.
Remove the outlet union from the pump.
Remove the gasket.
Remove the flow control valve from the pump.
Remove the spring from the pump.
Inspect the spring. Replace the spring if necessary.

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.