LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2007 >> Optra LS, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - ZF 4HP 16 - Specifications, Component Locations And Repairs >> Repair Instructions >> Control Valve Body Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

    IMPORTANT: After installing the control valve body assembly, the shift adapts must be reset. Reset the shift adapts using the scan tool. Go to "Trans Adaptives Reset" under "Special Functions" on the scan tool.
    Fig 1: Identifying Valve Body Mounting Bolts
    GM1255959Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  1. Install the control valve body and the mounting bolts.

    Tighten:  Tighten the bolts to 8 N.m (71 lb in)  .

  2. Install the mounting bolt to the input speed sensor.

    Tighten:  Tighten the bolt to 8 N.m (71 lb in)  .

  3. Fig 2: View Of A/T Output Speed Sensor And Mounting Bolts
    GM1255960Courtesy of GENERAL MOTORS CORP.
  4. Install the mounting bolt to the output speed sensor.

    Tighten:  Tighten the bolt to 6 N.m (53 lb in)  .

  5. Install the oil pan and the oil pan gasket. Refer to Automatic Transmission Fluid Pan and Gasket Installation .
  6. Fig 3: Identifying Transaxle Fluid Drain Plug And DT 46475
    GM1255915Courtesy of GENERAL MOTORS CORP.
  7. Using DT 46475  (1), install the transaxle fluid drain plug. See Special Tools .
  8. Install the engine cover. Refer to Engine Cover Replacement .
  9. Fig 4: View Of Transaxle Wiring Harness And PNP Switch Connector
    GM1290953Courtesy of GENERAL MOTORS CORP.
  10. Lower the vehicle.
  11. Connect the transaxle wiring harness and connect the electrical connector from the PNP switch.
  12. Refill the transaxle fluid. Refer to Transmission Fluid Level Inspection .
  13. Connect the negative battery cable.