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 >> Pressure Regulator Replacement >> Installation Procedure

Installation Procedure

  1. Install the pressure regulator valve with J 36850  .
    2. Fig 1: Reverse Boost Valve Assembly
    GM43318Courtesy of GENERAL MOTORS CORP.
  2. Pre-assemble the following parts:
    • The reverse boost valve bushing
    • A new reverse boost valve
    • A new pressure regulator spring retainer
    • The added isolator pressure regulator spring
    • The pressure regulator spring
  3. Install the pre-assembled parts into the pump bore.
    4. Fig 2: View Of Valve Bore Plug Retainer Ring & Reverse Boost Valve Bushing Retainer Ring
    GM102558Courtesy of GENERAL MOTORS CORP.
  4. Install the reverse boost valve bushing retainer ring while holding the reverse boost valve bushing in place.

    Ensure the retainer ring (2) is in the groove.

  5. Install the transmission oil pan and the oil filter. Refer to Automatic Transmission Fluid and Filter Replacement .
  6. Lower the vehicle.
  7. Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to Transmission Fluid Check .
    8. 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 .
scientia non olet · About LEMON Manuals