6.7L – 142/148/160/164 Inch Wheelbase – Thump/Knock Noise From The Fuel Tank After Performing TSB 21-2057 – 2020-2022 Ford F-Super Duty
NHTSA ID Number: 10209223 Manufacturer Communication Number: SSM 50619 Summary Some 2020-2022 F-Super Duty pickup vehicles equipped with a 6.7L engine and built on or before 23-Sep-2021 may exhibit a thump/whine/knock noise from the fuel tank at idle or during key on, engine off (KOEO) after performing TSB 21-2057. The noise may be more pronounced at fuel … Read more