Ford Ranger 2019–2022 — technical service bulletin
Bulletin SSM 51051 · NHTSA communication 10218921 · issued Aug 24, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2019–2022
model years
4
vehicle entries
Official summary
Some 2019-2022 Ranger vehicles (equipped without an engine appearance cover) may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304 and/or P0316 stored in the powertrain control module (PCM). This may be due to water build up in the spark plug well(s) which can lead to signs of corrosion on ignition system components. To prevent reoccurrence, an engine appearance cover must be installed on the vehicle. Currently, the engine cover (SPN: L1MZ-6A949-A) is not available to order and a new engine cover kit is being released
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.