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Home >> Chevrolet >> 2002 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1580 (Automatic Transmission - 4T45-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> On-Vehicle Repair Instructions >> Control Valve Body Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Locating Channel Plate Checkballs
    GM894856Courtesy of GENERAL MOTORS CORP.
  1. Make sure the checkballs (1-7) are in the proper locations on the channel plate. Retain the checkballs with petroleum jelly.
    2. Fig 2: Removing & Installing Spacer Plate Support & Spacer Plate
    GM1776849Courtesy of GENERAL MOTORS CORP.
  2. Install a new spacer plate assembly (90) onto the channel plate.
    3. CAUTION: Refer to Fastener Caution .
  3. Hand start the spacer plate support bolts (20) and install the spacer plate support (21).

    Tighten the spacer plate support bolts to 14 N.m (10 lb ft).

    4. Fig 3: Removing & Installing Control Valve Body Assembly
    GM1776844Courtesy of GENERAL MOTORS CORP.
  4. Install a new control valve body to the spacer plate assembly (90).
  5. Install the control valve body assembly onto the gasket. Hand start the control valve body assembly bolts (9, 12, 16) to hold the valve body in place.
    6. Fig 4: Removing & Installing Transmission Fluid Pressure Manual Valve Position Switch & Identifying O-Rings
    GM893966Courtesy of GENERAL MOTORS CORP.
  6. Inspect the TFP switch assembly (2) in order to verify the condition and the correct location of the pressure switch O-rings. If necessary, replace the TFP switch assembly O-rings.
  7. Install the TFP switch assembly onto the control valve body assembly.
    8. Fig 5: Locating Control Valve Body Assembly Bolts
    GM1205826Courtesy of GENERAL MOTORS CORP.
  8. Install the remaining control valve body bolts.
    9. Fig 6: Identifying Control Valve Body Bolts
    GM892796Courtesy of GENERAL MOTORS CORP.
  9. Hand start the bolts and tighten to 12 N.m (9 lb ft).
    10. Fig 7: View Of Wire Harness Connectors To Pressure Control Solenoid, 1-2 Shift Solenoid, 2-3 Shift Solenoid, TFP Switch Assembly & TCC Solenoid
    GM893969Courtesy of GENERAL MOTORS CORP.
  10. Connect the transaxle wiring harness to the following components:
    • TFP switch assembly
    • Pressure control solenoid (red connector)
      • NOTE: The 1-2 shift solenoid wires are red and green. The 2-3 shift solenoid wires are red and yellow.
    • 1-2 shift solenoid
    • 2-3 shift solenoid
    • TCC solenoid
    11. Fig 8: Removing & Installing Oil Pump Assembly & Oil Pump Shaft
    GM893972Courtesy of GENERAL MOTORS CORP.
  11. Install the oil pump shaft into the control valve body assembly.
    12. NOTE: If necessary, rotate the oil pump shaft while installing the oil pump assembly in order to engage the shaft splines to the splines on the oil pump rotor.
  12. Install the oil pump assembly onto the oil pump shaft and the control valve body..

    Hand start and install the oil pump assembly bolts and tighten to 12 N.m (9 lb ft).

  13. Install the transaxle case side cover. Refer to Control Valve Body Cover Replacement .
  14. Start the engine, warm up the transaxle, and check for leaks.
  15. Inspect for proper fluid level. Refer to Transmission Fluid Check .
    16. NOTE: 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.
  16. Reset the TAP values. Refer to Transmission Adaptive Functions .
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