Ford Mustang 2015–2017 — technical service bulletin
Bulletin SSM 47433 · NHTSA communication 10144221 · issued Jul 26, 2018
Technical service bulletin
communication type
Equipment
component
2015–2017
model years
3
vehicle entries
Official summary
Some 2015-2017 Mustang vehicles equipped with a 5.0L engine may exhibit an illuminated MIL with diagnostic trouble code (DTC) P0300 through P0308 present. A noticeable misfire may or may not accompany these DTCs. If normal diagnostics do not lead to a root cause for this concern, remove the intake manifold from the vehicle and verify the intake manifold runner control (IMRC) plates move when the IMRC actuators are moved by hand. These plates are visible through the outlet ports of the intake manifold. If the IMRC plates do not move when the IMRC actuators are moved by hand, the intake manifold
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.