LEMON Manuals: Even more car manuals for everyone
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 >> Forward Servo Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Forward Servo Assembly
    GM512978Courtesy of GENERAL MOTORS CORP.
  1. Install the following parts:
    • Piston spring (1)
    • Retainer (2)
    • Servo piston (3)
    • O-ring seal (4)
    • Forward servo piston pin (5)
  2. NOTE: Refer to Fastener Notice.
  3. Install the forward servo gasket, cover, and bolts.

    Tighten:  Tighten the bolts to 24 N.m (18 lb ft).

  4. Install the oil pan and filter. Refer to Automatic Transmission Fluid and Filter Replacement .
  5. Lower the vehicle.
  6. Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to Transmission Fluid Check .
  7. 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.
  8. Reset the TAP values. Refer to Transmission Adaptive Functions .