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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Steering >> Power Steering >> Repair Instructions >> Power Steering Fluid Reservoir Replacement - Off Vehicle >> Disassembly Procedure

Disassembly Procedure

    Fig 1: View Of Pump Housing, Mounting Studs, O-Ring Seal & Connector/Fitting Assembly
    GM404915Courtesy of GENERAL MOTORS CORP.
  1. Drain the power steering fluid from the power steering pump.
  2. Remove the 2 power steering pump mounting studs (2).
  3. Remove the power steering flow control valve fitting (4).
  4. Remove the flow control valve O-ring seal (3).
    5. Fig 2: View Of Pump Housing Assembly, Control Valve Assembly & Flow Control Spring
    GM404928Courtesy of GENERAL MOTORS CORP.
  5. Remove the flow control valve (2) and the flow control valve spring (3) from the power steering pump housing (1).
    6. Fig 3: View Of Reservoir Assembly & Pump Housing Assembly
    GM404931Courtesy of GENERAL MOTORS CORP.
  6. Remove the power steering reservoir (1) from the power steering pump housing assembly (2).
    7. Fig 4: Identifying Reservoir O-ring Seals
    GM404947Courtesy of GENERAL MOTORS CORP.
  7. Remove the O-ring seals (1) (4) (5).
  8. Remove the magnet (3).
  9. Clean the magnet (3).
  10. Inspect the welch plug in the power steering pump housing (2). Do not remove the welch plug. If the welch plug is deformed or dislodged, replace the power steering pump housing (2).
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