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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L80-E/4L85-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> On-Vehicle Repair Instructions >> Torque Converter Clutch Valve and Spring Replacement >> Installation Procedure

Installation Procedure

    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 oil pan and oil filter. Refer to Automatic Transmission Fluid and Filter Replacement .
  4. Lower the vehicle.
  5. Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to Transmission Fluid Check .
    6. 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.
  6. Reset the TAP values. Refer to Transmission Adaptive Functions .
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