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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Automatic Transmission - 4L80-E/4L85-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - On Vehicle >> Torque Converter Clutch Valve and Spring Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: TCC Valve Assembly
    GM43320Courtesy of GENERAL MOTORS CORP.
  1. Install the following parts:
    • The TCC valve spring
    • The TCC valve
    • The valve bore plug
    2. Fig 2: View Of Valve Bore Plug Retainer Ring & Reverse Boost Valve Bushing Retainer Ring
    GM102558Courtesy of GENERAL MOTORS CORP.
  2. Install the valve bore plug retainer ring (1).
  3. Install the transmission filter. Refer to Automatic Transmission Fluid and Filter Replacement .
    4. IMPORTANT: It is recommended that transmission adaptive pressure (TAP) information be reset.
    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
  4. Reset the TAP values. Refer to Transmission Adaptive Functions .
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