Ford Transit 2015–2019 — technical service bulletin
Bulletin SSM 48601 · NHTSA communication 10172948 · issued Mar 2, 2020
Technical service bulletin
communication type
Fuel System, Diesel
component
2015–2019
model years
5
vehicle entries
Official summary
SSM 48601 - 2015-2019 Transit - 3.2L Diesel - Loss Of Power During Driving Under Extreme Cold Weather Conditions Some 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may exhibit a concern about loss of power during driving under very cold weather conditions. This may be due to fuel waxing/gelling in the filter. Market fuel properties or improperly adjusted seasonal fuel may lead to early fuel filter waxing and restricting fuel flow to the engine. In order to rectify this extreme cold concern, a fuel filter thermal valve kit CK4Z-9B337-B can be installed. The kit improves the reci
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.