Lincoln Navigator: Automatic Transmission - 10-Speed Automatic Transmission – 10R80 / Main Control Valve Body. Removal and Installation

Removal

NOTE: The Solenoid Body Strategy Data Download procedure must be performed if a new main control valve body is installed.

NOTE: If a main control valve body overhaul is carried out or a new SS is installed, carry out the adaptive learning drive cycle procedure at the end of the repair.

1. Remove the transmission fluid pan gasket and filter.
   Refer to: Transmission Fluid Pan, Gasket and Filter (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation).
   

1. Place the vehicle in emergency park position release.
   Refer to: Emergency Park Position Release (307-05 Automatic Transmission External Controls, General Procedures).
   

1. Remove the bolt and the transmission fluid auxiliary pump tube.
   

1. Remove the transmission fluid auxiliary pump tube seal.
   

1. NOTE: The internal wiring harness electrical connector can not be fully disconnected until lowering the main control valve body.

   Unlock the internal wiring harness electrical connector.
   

1. 
   Remove the main control valve body.
   
   1. While supporting the main control valve body, remove the main control-to-transmission case bolts.
      
   2. Disconnect the internal wiring harness electrical connector while removing the main control valve body.
      

1. Remove the main control assembly to transmission fluid pump seal.
   

Installation

1. Install the main control assembly to transmission fluid pump seal.
   

1. NOTICE: Do not install a 71 mm length bolt in the location shown or the transmission clutch and planetary container will be damaged and result in transmission failure.

   
   Loosely install the main control valve body.
   
   1. Connect the internal wiring harness electrical connector while installing the main control valve body.
      
   2. Align the TR sensor with the park pawl lock valve.
      
   3. Align the guide pins on the main control valve body with the alignment holes in the transmission case.
      
   4. Loosely install the 68 mm length main control-to-transmission case bolts.
      

1. Lock the internal wiring harness electrical connector.
   

1. Install the transmission fluid auxiliary pump tube seal.
   

1. Inspect the transmission fluid auxiliary pump tube O-ring.
   

1. Install the transmission fluid auxiliary pump tube and loosely install the bolt.
   

1. 1. Tighten the bolts No. 1-8 in the sequence shown.
      Torque: 89 lb.in (10 Nm)
   2. Tighten bolt No. 9
      Torque: 106 lb.in (12 Nm)

1. Install the transmission fluid pan gasket and filter.
   Refer to: Transmission Fluid Pan, Gasket and Filter (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation).
   

1. NOTICE: When the repair is complete, the park overide lever must be returned to the NORMAL OPERATING POSITION or vehicle damage can occur.

   Return the park override lever to the normal operating position.
   Refer to: Emergency Park Position Release (307-05 Automatic Transmission External Controls, General Procedures).
   

1. NOTE: The solenoid body strategy data file and solenoid body identification must be updated anytime a new main control valve body is installed. A new main control valve body service tag must be installed over the current main control valve body service tag on the transmission case.

   If a new main control valve body was installed, download a new transmission strategy.
   Refer to: Transmission Strategy Download (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, General Procedures).
   

1. If a main control valve body overhaul was carried out or a new SS was installed, carry out the adaptive learning drive cycle procedure.
   Refer to: Adaptive Learning Drive Cycle (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, General Procedures).