Ford Transit 2020 — technical service bulletin
Bulletin 19B42-S1 · NHTSA communication 10171017 · issued Jan 31, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
1
vehicle entries
Official summary
In some of the affected vehicles, the incorrect rear climate control heater lines may be installed allowing contact between the heater lines and the drive shaft. This contact may cause an underbody noise concern, and if left uncorrected, may lead to loss of engine coolant.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.