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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 >> Accumulator Housing Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Installing J 25025 Into The Valve Body Bolt
    GM477811Courtesy of GENERAL MOTORS CORP.
  1. Install the J 25025  into the control valve body bolt hole where the manual shaft detent roller and spring assembly is mounted.
  2. Install the control valve body gasket (2) onto the accumulator housing (1).
  3. Install the control valve body spacer plate (3) onto the valve body gasket (2).
    4. Fig 2: Third And Fourth Clutch Accumulator Housing Components
    GM477816Courtesy of GENERAL MOTORS CORP.
  4. Install the third and fourth clutch accumulator housing gasket (3).
  5. Install the third clutch accumulator piston spring (1). This spring is the longer of the two springs.
  6. Install the fourth clutch accumulator piston spring (4).
  7. Install the third and fourth clutch accumulator housing assembly (5) onto the control valve body assembly (2).
  8. Install the six accumulator housing bolts (6). Start the bolts finger tight and work towards the opposite end.
    9. Fig 3: Accumulator Housing Bolt Tightening Sequence
    GM477819Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice.
  9. Tighten the accumulator housing bolts sequentially.

    Tighten:  Tighten the accumulator housing bolts to 11 N.m (97 lb in).

  10. Remove the J 25025  .
  11. Install the control valve body assembly. Refer to Valve Body and Pressure Switch Replacement .
  12. Lower the vehicle.
  13. Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to Transmission Fluid Check .
    14. 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.
  14. Reset the TAP values. Refer to Transmission Adaptive Functions .
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