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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Oil Pump Cover Disassemble

Oil Pump Cover Disassemble

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Oil Pump Cover & Components
    GM1552951Courtesy of GENERAL MOTORS CORP.
  1. Remove the oil pump reverse boost valve retaining ring (221).
  2. Remove the reverse boost valve sleeve (220) and the reverse boost valve (219).
  3. Remove the pressure regulator isolator spring (218) and the pressure regulator valve spring (217).
  4. Remove the pressure regulator valve (216).
    5. Fig 2: Identifying Converter Clutch Valve Components
    GM1552952Courtesy of GENERAL MOTORS CORP.
  5. Remove the oil pump converter clutch valve retaining ring (222).
  6. Remove the stop valve (223) and the converter clutch valve (224).
  7. Remove the converter clutch valve (246).
    8. Fig 3: Identifying Pressure Relief Bolt Valve components
    GM1552954Courtesy of GENERAL MOTORS CORP.
  8. Remove the pressure relief bolt rivet (227).
  9. Remove the pressure relief spring (229) and the pressure relief ball (228).
  10. Remove the oil pump cover screen (232) and the oil pump cover screen seal (231).
    11. Fig 4: View Of Stator Shaft Oil Seal Rings
    GM1552955Courtesy of GENERAL MOTORS CORP.
  11. Remove the stator shaft oil seal rings (230).
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