Main Control Valve Body: Installation

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Install the main control assembly to transmission fluid pump seal.

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NOTE: 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.
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Lock the internal wiring harness electrical connector.

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Auto-Start-Stop vehicles
Install the transmission fluid auxiliary pump tube seal.

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Inspect the transmission fluid auxiliary pump tube O-ring.

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

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All vehicles
1. Tighten the bolts No. 1-8 in the sequence shown.
  Torque: 89 lb.in (10 Nm)
2. If equipped with Auto-Start-Stop, tighten bolt No. 9
  Torque: 106 lb.in (12 Nm)
Fig 1: Main Control Valve Body Bolts Tightening Sequence
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Install the transmission fluid pan gasket and filter. Refer to: Transmission Fluid Pan, Gasket and Filter . Refer to: Transmission Fluid Pan, Gasket and Filter - 3.0L Power Stroke Diesel .
NOTE: When the repair is complete, the park overide release must be returned to the NORMAL OPERATING POSITION or vehicle damage can occur.

Verify that the park override release is in the normal operating position. Refer to: Transmission Park by Wire Manual Release .
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 .