Ford Expedition Engine Control Computer

Replacement Parts

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Bigger, stronger and more durable than the rest, your Ford Expedition is the perfect balance of brawn and brains. When the brain inside your engine control unit needs replacing, your check engine light is the first to let you know. Get a new Ford Expedition engine control module from AutoZone today.

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  • Part Number: 78-8491F-UNF
  • Application: Unflashed
  • Notes: Unit sold unflashed
    With Module #MLC-496, 496A. Flash units require programming specific to the vehicle. Accurate VIN and mileage are required. Additional vehicle specific on-car programming may need to be performed after installation to prevent drivability and starting issues
  • Part Number: 78-6845
  • Notes: Units are pre-programmed at the factory and ready for installation with no further programming required. Emission Calibration/Tear Tag On Front Door Jams, in Trunk, or Under Hood. With Calibration #8-48U. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-8426F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required. With Module #ML2-431. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-8491FF
  • Application: Flashed
  • Notes: With Module #MLC-496, 496A. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Additional vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues.
  • Part Number: 78-1118F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required. With Module #MG3-L1712. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-1115F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required. With Module #MG3-L1722. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-6805
  • Notes: Units are pre-programmed at the factory and ready for installation with no further programming required. Emission Calibration/Tear Tag On Front Door Jams, in Trunk, or Under Hood. With Calibration #7-48J, 8-48J. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-1117F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required. With Module #MG3-L1732. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-8500F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Additional vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues. With Module #MPC-143. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-8498F
  • Application: Flashed
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Additional vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues. With Module #MPC-141. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  • Part Number: 78-1247F
  • Notes: All Calibrations with Module ID #BR3A-12B684-CB, cc. Unit may require additional programming either ON or OFF the vehicle. Units must be flashed ON the vehicle. Vehicle specific on-car programming must be performed AFTER installation to prevent drivability and starting issues.
  • Part Number: 78-1116F
  • Notes: Flash Programming included in Price. Flash Units require programming specific to the vehicle prior to shipping. Accurate VIN and mileage are required. Delivered units are ready for installation with no further programming required. With Module #MG3-L1731. Customer-specific parameters such as courtesy light timing, among others, may need to be reset after ECM is re-installed.
  •  | Page 1 of 3 |  

You need your engine control unit to operate properly to avoid not starting, automatic gear shifting issues and to make your check engine light turn off. The best place to save money and get your problem fixed is at AutoZone, a quality, affordable auto parts retailer. When you're in the market for a new Expedition engine control computer, you want a part that outperforms your current factory component. Providing the right products at the right prices is how AutoZone helps you find and solve your Expedition's issues and get you back on the road.

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