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Disassembly Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the oil from the reservoir (1).
  2. Remove the control valve assembly (3) from the pump housing (1). Make sure the flow control spring (4) does not fall out of the pump housing (1).
    Fig 1: Removing Control Valve Assembly From Pump Housing
    GM431058Courtesy of GENERAL MOTORS CORP.
  3. Remove the rectangular section seal (2) from the control valve assembly (3).