Ford 2.7L - Illuminated MIL/Engine Coolant Over Temperature Warning w/Various DTCs

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Tech Tips

Ford- Illuminated MIL/Engine Coolant Over Temperature Warning

This may be caused by the engine coolant temperature (ECT) sensor or knock sensor wiring harness.

Underhood Service Staff Writers
By Underhood Service Staff Writers
Published:
  • MODELS
  • 2015-2020 F150 2.7L EcoBoost
  • 2015-2020 Edge 2.7L EcoBoost
  • 2015-2020 Fusion 2.7L EcoBoost
  • 2016-2018 MKX 2.7L EcoBoost
  • 2019-2020 Nautilus 2.7L EcoBoost

Customers may experience an illuminated malfunction indicator lamp (MIL) and/or an 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 caused by the engine coolant temperature (ECT) sensor or knock sensor wiring harness. Replace the 12A648 ECT sensor and 12A699 knock sensor. Do not disconnect the ECT sensor from the knock sensor harness in case parts are called back for analysis.

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Subaru PCV Hose Redesign

Always order the most up-to-date replacement parts based on the specific model.

Underhood Service Staff Writers
By Underhood Service Staff Writers
Published:

2020-2022 Legacy & Outback 

2019-2022 Ascent 

With the 2.4L Turbo

This bulletin announces a design change made to the Positive Crankcase Ventilation (PCV) hose assembly. Enlarged clamps and a reinforced PCV hose material have been incorporated into production to address rare cases of odor coming from the engine compartment. A customer may describe this as a hot rubber, raw fuel or hot oil-type odor. If confirmed, replace the PCV hose assembly and the associated clamps with the new parts. The new PCV hose assemblies were incorporated into vehicle production starting with Legacy N3012316, Outback N3180978 and Ascent N3415317. Always order the most up-to-date replacement parts based on the specific. The latest part number:

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