Ford Explorer 2020 — technical service bulletin
Bulletin SSM 49004 · NHTSA communication 10177711 · issued Jul 20, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
2
vehicle entries
Official summary
Some 2020 Explorer/Aviator vehicles equipped with a 3.0L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) and/or Engine Coolant Over Temperature warning with diagnostic trouble codes (DTCs) P0116, P0117, P0118, P0119, P0128, P0217, P0330, P1026, P1299, and/or P130D. This may be due to the engine coolant temperature (ECT) sensor or ECT sensor wiring harness. To correct the condition, replace the ECT and knock sensor. To aid with the engineering investigation, do not disconnect the wiring connector from the ECT sensor during disassembly. Leave the connector on the sens
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.