SSM 51439

Service Bulletin Details

Public Details for: SSM 51439

Some 2020-2023 explorer/aviator 4x4/awd vehicles with hybrid powertrain may experience a harshness and/or vibration felt through the seat, steering wheel and/or center console after initial driveaway between 25-50 mph (40-80 km/h) that less


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Models from 2023
2023 FORD EXPLORER
2023 LINCOLN AVIATOR
Models from 2022
2022 FORD EXPLORER
2022 LINCOLN AVIATOR
Models from 2021
2021 FORD EXPLORER
2021 LINCOLN AVIATOR
Models from 2020
2020 FORD EXPLORER
2020 LINCOLN AVIATOR 
SSM 51439
2020-2023 Explorer/Aviator 4x4/AWD Vehicles - Hybrid – Driveline Vibration
After Initial Driveaway Between 25-50 MPH (40-80 Km/h)
Some 2020-2023 Explorer/Aviator 4x4/AWD vehicles with hybrid powertrain may experience a harshness
and/or vibration felt through the seat, steering wheel and/or center console after initial driveaway between
25-50 MPH (40-80 Km/h) that lessens after driving 5-10 minutes. This may be due to driveshaft center
bearing bounce mode during cold ambient temperatures. To resolve the concern, install a softer
durometer L1MZ-4A499-F driveshaft center bearing per Workshop Manual Section 205-01. For claiming,
use causal part 4A499 and applicable labor operations in Section 4 of the Service Labor Time Standards
(SLTS) Manual.

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