Ford Transit 2015–2019 — technical service bulletin
Bulletin 21M03 · NHTSA communication 10204045 · issued Nov 4, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2015–2019
model years
5
vehicle entries
Official summary
Certain 2015-2019 Model Year Transit Vehicles with a 3.2L Diesel Engine EGR Cooler Replacement n some of the affected vehicles, the EGR cooler may crack and allow coolant to enter the combustion chamber when EGR is enabled. A cracked EGR cooler may cause malfunction indicator light (MIL) illumination, reduced power, engine overheating, white smoke from the exhaust, and/or coolant level low without an exterior leak.
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.