4WD – Revised IWE Operation Strategy After Initial Start Up – 2019 Ford F-150 & Expedition & Lincoln Navigator
NHTSA ID Number: 10163587 Manufacturer Communication Number: SSM 48088 Summary 2019 F-150/Expedition/Navigator vehicles equipped with four-wheel drive (4WD) have a revised transfer case control module (TCCM) strategy that will affect integrated wheel end (IWE) operation after initial start up. The TCCM will not energize the solenoid to supply vacuum to the IWEs after the initial key cycle … Read more