Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2007 Ford Expedition RWDFACTORY OEM SERVICE PROCEDURE
Mechatronic Assembly: Assembly
CAUTION:
Do not touch the electrical connector pins or the exposed solenoid tabs on the transmission control module (TCM). An electrostatic discharge may occur and may cause damage to the TCM/mechatronic assembly.
Mechatronic assembly upper halfΒ
- Install the clips, caps, valves and spring into each bore. Refer to the preceding exploded views.
- Install the clips, caps, valves and spring into each bore.
- Install the solenoids into their correct bores as indicated during disassembly.
- Install the solenoid bracket and the 8 bolts.
- Tighten to 6 Nm (53 lb-in).
- Install into the mechatronic assembly the transmission control valves, check balls and filter screens. Refer to the preceding exploded views.
- Install a new separator plate.
- Assemble the lower half and the upper half of the mechatronic assembly.
- Install the 19 short bolts into the mechatronic assembly. Tighten the bolts in the sequence shown.
- Tighten to 6 Nm (53 lb-in).
- Carefully install the TCM onto the mechatronic assembly.
- Install the 6 long bolts into the TCM unit. Tighten the bolts in the sequence shown.
- Tighten to 6 Nm (53 lb-in).
NOTE:
Many components and surfaces in the mechatronic valve body are precision machined. Careful handling during disassembly, cleaning, inspection and assembly will prevent unnecessary damage to machined surfaces.
Mechatronic assembly lower halfΒ
NOTE:
Many components and surfaces in the mechatronic valve body are precision machined. Careful handling during disassembly, cleaning, inspection and assembly will prevent unnecessary damage to machined surfaces.
NOTE:
Lubricate the O-ring seals of the solenoids with clean automatic transmission fluid when installing them into the valve body.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
