Power Steering Pump Flow Control Valve Replacement

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Power Steering Pump Flow Control Valve Replacement
WARNING: This page is about a different car, the 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, and 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Remove the O-ring union fitting from the hydraulic pump housing assembly. Remove the O-ring seal from the O-ring union fitting. Remove the control valve assembly. Remove the flow control spring. See Fig 1 . To install, reverse removal procedure.

Fig 1: Exploded View Of Power Steering Pump Flow Control Valve
G00058543Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.