Ford C-Max 2017–2018 — technical service bulletin
Bulletin SSM 47090 · NHTSA communication 10136603 · issued Feb 19, 2018
Technical service bulletin
communication type
Fuel System, Gasoline
component
2017–2018
model years
6
vehicle entries
Official summary
Some 2017-2018 Energi and Hybrid vehicles may exhibit a fuel door opening delay longer than 15 sec or unable to open condition without refueling system or fuel door related DTCs. This condition may be due to the high pressure fuel tank pressure transducer (HPFTPT) functionality. Check the HPFTPT after opening the fuel door by releasing the mechanical lever located in the trunk. Install supplemental refueling adaptor in the vehicle to open the capless fuel tank filler pipe. During key on engine off (KOEO) condition check if the fuel tank pressure transducer (FTPT) voltage is between 1.4 1.54 V
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.