Ford E-350 2020–2021 — technical service bulletin
Bulletin 20B15 · NHTSA communication 10174384 · issued Apr 23, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020–2021
model years
6
vehicle entries
Official summary
In some of the affected vehicles , a piston oil cooler bracket may have been damaged during engine assembly. A damaged piston oil cooler bracket may allow the piston oil cooler to detach. This can lead to low engine oil pressure and may result in intermittent engine noises and/or illumination of the check engine light due to diagnostic trouble code(s).
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.