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.
2009 Ford Expedition 4WDFACTORY OEM SERVICE PROCEDURE
Pump Assembly: Disassembly
- Remove the front pump washer.
- If the O-ring seal was not removed during disassembly, remove and discard the front pump O-ring seal from the pump assembly.
- Remove and discard the front pump seal rings from the stator support.
- Index-mark the pump body to the pump plate assembly.
- Pump body
- Pump plate assembly
- Index mark
- Remove the 11 pump plate assembly-to-pump body bolts.
- Push down on the loose pump plate assembly-to-pump body bolts to remove the pump body from the pump plate assembly and remove the 11 bolts.
- Remove the fluid pump gears.
- Remove and discard the pump body outer seal.
- Inspect the inner and the outer pump gears for damage.
- Clean all pump components in solvent.
- Dry the parts with compressed air.
- Inspect the pump gears, faces, gear teeth and mating surfaces for damage or scoring.
- Install a new pump as necessary.
- Inspect the pump body and pump plate thrust surfaces for damage or scoring.
- Pump body
- Pump plate assembly
- Pump gear thrust surfaces
- Inspect the torque converter hub bearing for damage or scoring. Make sure that the bearing rotates smoothly.
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.
