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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 485 (Power Steering System) >> Repair Instructions >> Power Steering Fluid Reservoir Replacement - Off Vehicle >> Disassembly Procedure

Disassembly Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the power steering pump assembly from the vehicle. Refer to Power Steering Pump Replacement (4.8L, 5.3L, 6.0L, and 6.2L) .
    2. Fig 1: View Of Pump Housing, Mounting Studs, O-Ring Seal & Connector/Fitting Assembly
    GM404915Courtesy of GENERAL MOTORS COMPANY
  2. Remove the power steering fluid reservoir studs (2) from the power steering pump assembly (1).
  3. Remove the power steering pump fitting (4).
  4. Remove the power steering pump fitting seal (3).
    5. Fig 2: View Of Pump Housing Assembly, Control Valve Assembly & Flow Control Spring
    GM404928Courtesy of GENERAL MOTORS COMPANY
  5. Remove the power steering pump flow control valve (2) and the power steering pump flow control valve spring (3) from the power steering pump assembly (1).
    6. Fig 3: View Of Reservoir Assembly & Pump Housing Assembly
    GM404931Courtesy of GENERAL MOTORS COMPANY
  6. Separate the power steering fluid reservoir (1) and the power steering pump (2).
    7. Fig 4: Removing Reservoir O-ring Seals
    GM404947Courtesy of GENERAL MOTORS COMPANY
  7. Remove the power steering pump seals (1, 4, 5).
  8. Remove and clean the power steering fluid reservoir magnet (3).
  9. Inspect the welch plug in the power steering pump (2). DO NOT REMOVE IT. If the welch plug is deformed or dislodged then replace the power steering pump (2).
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