FixVault
Home › Hummer › 2003 › H2 › Repair and Diagnosis › Transmission › Automatic Trans › Automatic Transmission - Introduction, Removal & Installation & Service › Repair Instructions › Case Assembly Inspection

Case Assembly Inspection

    Fig 1: Inspecting Spacer Plate To Case Gasket
    GM4192Courtesy of GENERAL MOTORS CORP.
  1. Inspect the spacer plate to case gasket for witness marks. The witness marks should be complete. Incomplete witness marks may come from an uneven case surface or from cross channel leaks.
    2. Fig 2: Identifying Case Fluid Passages
    GM4193Courtesy of GENERAL MOTORS CORP.
  2. Using compressed air, blow into all of the case fluid passages (3, 7, 8, 11, 16, 18, 26, 29, 37, 45) to ensure that all case fluid passages are clear of any obstruction.
    3. Fig 3: 2-4 Servo Bore, 3rd Accumulator Retainer & Ball Assembly, Orifice Cup Plug & 2nd Apply Piston Pin Bore
    GM4194Courtesy of GENERAL MOTORS CORP.
  3. Inspect the 2-4 servo bore, the 3rd accumulator retainer and ball assembly (40), the orifice cup plug (11) in the servo bore, and the 2nd apply piston pin bore for any of the following conditions:
    • Porosity
    • Burrs
    • Debris
    • Any other damage
    4. Fig 4: Inspect 3-4 Accumulator Bore & Orifice Cup Plug
    GM4195Courtesy of GENERAL MOTORS CORP.
  4. Inspect the 3-4 accumulator bore and the orifice cup plug (38) for any of the following conditions:
    • Porosity
    • Burrs
    • Blockage
    • Any other damage
  5. Inspect all bolt holes for thread damage. Use heli-coil to repair damaged threads.
  6. Inspect the cooler connectors for damage and proper torque.

    Specification:  Cooler connector torque should be 38 N.m (28 lb ft)

About FixVault