There is a new SSM out that instructs techs to check the sensor connectors for corrosion or damage before replacing the inlet pipe/heat exchanger. It might apply to your situation and will probably save you some cash If this is the problem.
I had to extend my lease by two months while I wait for Ford to schedule and build my replacement 2024 F150... And this is what I get in return for waiting.
| SSM 52543 2021-2024 F-150 3.5L Full Hybrid Electric Vehicle (FHEV), 2020-2024 Explorer 3.3L FHEV, 2020-2024 Escape 2.5L FHEV, 2022-2024 Maverick 2.5L FHEV - Illuminated Malfunction Indicator Lamp (MIL) With Diagnostic Trouble Code (DTC) P237F And/Or P2C23 |
| Some 2021-2024 F-150-3.5L FHEV, 2020-2024 Explorer 3.3L FHEV, 2020-2024 Escape 2.5L FHEV, and 2022-2024 Maverick 2.5L FHEV vehicles may exhibit an illuminated MIL with DTC P237F and/or P2C23 stored in the powertrain control module (PCM) and no affect on drivability. This may be due to seal damage, corrosion and/or water intrusion in the exhaust coolant temperature (ECT) sensors 3 and/or 4 connector. Visual inspection should be completed on ECT3 and ECT4 sensors and mating connections for seal damage, water intrusion, and corrosion. If seal damage, water intrusion or corrosion is present, repair per cell 5 of the Wiring Diagram, then apply Motorcraft® XG-12 Electrical Grease to the female/vehicle side of the harness. This inspection of ECT3 and ECT4 sensors should be completed prior to starting the appropriate pinpoint test in Section 303-03 of the Workshop Manual (WSM). If DTCs P237F and/or P2C23 do not return, no further action is necessary and the replacement of the entire exhaust heat exchanger assembly is not required. If P237F and/or P2C23 returns, follow the pinpoint test in Section 303-03 of theWSM for further diagnostics. |
I am thinking of doing that if there is any cost to me.
