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.
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HOMESERVICE MANUALSFORD2021EXPEDITION PLATINUM, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 301 (FOUR-WHEEL DRIVE SYSTEMS)REMOVAL AND INSTALLATIONALL-WHEEL DRIVE (AWD) MODULEINSTALLATION
2021 Ford Expedition Platinum, RWD
All-Wheel Drive (AWD) Module: Installation
2021 Ford Expedition Platinum, RWDSECTION Installation
WARNING: This page is about a different car, the 2019 Lincoln Nautilus. However, it is still accessible from the selected car via links, so may be relevant.
- To install, reverse the removal procedure.NOTE: Carry out the remaining steps only if installing a new AWD module.
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NOTE: The 16/17 -digit alpha numeric bar code is located on the label attached to the Rear Drive Unit (RDU).
Using the scan tool, configure RDU bar code to AWD module through the OBD port.
- Using a diagnostic scan tool, complete the PMI process for the AWD module following the on-screen instructions.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.