Service bulletin TSB 20-2234

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10177867
Published by NHTSA	2020-08-06
Manufacturer's number	TSB 20-2234
Manufacturer's date	2020-07-10
NHTSA component	ENGINE AND ENGINE COOLING

NHTSA's summary

Some 2019-2020 Edge/Nautilus vehicles equipped with a 2.0L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0128, P0217, P044C, P1026, P1285, P1299, P139A and/or P2457 stored in the powertrain control module (PCM). The vehicle may also exhibit low coolant level, white smoke from the tailpipe, an over temperature warning in the instrument panel cluster (IPC), and/or an external coolant leak. This may be due to the exhaust gas recirculation (EGR) cooler and/or settings in the PCM software. To resolve the condition, inspect the EGR cooler and/or update the PCM software.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Trouble codes named

P0128, P0217, P044C, P1026, P1285, P1299, P139A, P2457

Vehicles listed
FORD EDGE	2019, 2020
LINCOLN MKX	2019 to 2020
LINCOLN NAUTILUS	2019, 2020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
TSB 26-2171	2026-04-22. Service bulletin. This article updates TSB 25-2154. Reasons for update: Parts List Service Procedure to replace the output planetary carrier assembly Added 2023-2024 model year vehicles Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Shudder condition, most noticeable at speeds below 60 mph (100 km/h) No relevant diagnostic trouble codes (DTC) present Traceable shudder event with IDS/FDRS reading (Figure 1)* This condition may be perceived/felt as an engine misfire. This may be due to a concern with the output planetary assembly.
SSM 54262	2025-10-07. Service bulletin. Some 2019-2020 Edge/Nautilus vehicles equipped with a 2.7L EcoBoost, 2020 Aviator vehicles equipped with a 3.0L EcoBoost or 3.0L plug-in hybrid electric vehicle (PHEV) engine, 2020 Explorer vehicles equipped with a 3.0L EcoBoost, and 2020 F-150 vehicles equipped with a 2.7L EcoBoost engine may exhibit a ticking/tapping or rattle type noise from the top front cover area of the engine. This noise may occur on initial start-up after a cold soak of 6 hours or more that may last for 2-5 seconds. This may be due to an internal component of the variable cam timing (VCT) unit. If diagnostics lead to the VCTs as the source of the noise, refer to the 2024 F-150 Workshop Manual (WSM), Section 303-00 > Diagnosis and Testing > Engine > Pinpoint Test F. Pinpoint test F has been updated to include additional steps along with a video on how to identify the single affected VCT unit that requires replacement.
SSM 53764	2025-05-21. Service bulletin. Some 2020 Continental, 2020-2024 Edge/Nautilus, 2020-2025 Explorer/Aviator/Escape/Corsair/F-150/F-Super Duty/Ranger/Transit/E-Series, 2021-2025 Bronco, and 2022-2025 Maverick vehicles may require an engine cooling system flush to be performed for various concerns. Workshop Manual (WSM), Section 303-03 has been updated to eliminate the need to remove and install the radiator assembly to perform a radiator flush.
SSM 52335	2024-03-20. Service bulletin. For 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to Workshop Manual (WSM), Section 303-00 for oil leak inspection and testing methods. Ford has evaluated turbochargers replaced for oil leak symptoms and although oil may collect on the external surface of a turbocharger, it is extremely rare for a turbocharger assembly to be the root cause of the oil leak. Careful inspection of the turbocharger oil feed and drain tubes should be performed along with the recommended WSM procedures as needed. Warranty claims for turbocharger replacement going forward will be assessed.
TSB 23-2356	2024-03-07. Service bulletin. This TSB supersedes TSB 23-2049 to update the parts list. Some 2019-2023 Edge/Nautilus vehicles equipped with a 2.7L EcoBoost engine may exhibit a ticking/tapping or rattle type noise from the top front cover area of the engine on initial start-up after a cold soak of 6 hours or more that may last for 2-5 seconds. This may be due to stuck internal components of the variable cam timing (VCT) unit. To correct the condition, follow the Service Procedure to replace the VCT units.
SSM 51665	2023-05-29. Service bulletin. Some 2021-2023 Ford and Lincoln vehicles equipped with a 2.7L or 3.0L engine may exhibit an upper engine thump/knock noise coming from the left cylinder head. This condition is most noticeable at idle and may lessen at higher engine speed or while driving. This condition does not affect vehicle durability and will not get worse over time. Use a stethoscope or chassis ears and listen just behind the left cylinder head intake VCT solenoid on the cam cover to determine if the thump/knock noise is coming from the cylinder head/camshaft. The left cylinder head and the camshaft roller followers are available as service parts.
TSB 23-2075	2023-04-04. Service bulletin. Some 2018-2019 Edge/Continental, 2018 MKX and 2019 Nautilus vehicles built on or before 1-Aug-2019 and 2018-2019 Fusion/MKZ vehicles built on or before 15-Aug-2019 equipped with a 2.7L EcoBoost or 3.0L EcoBoost engine may exhibit an oil leak from the engine oil pan RTV seal. To correct the condition, follow the Service Procedure steps to replace the oil pan with a new oil pan equipped with a press in place gasket.
TSB 23-2049	2023-04-04. Service bulletin. Some 2019-2023 Edge/Nautilus vehicles equipped with a 2.7L EcoBoost engine may exhibit a ticking/tapping or rattle type noise from the top front cover area of the engine on initial start-up after a cold soak of 6 hours or more that may last for 2-5 seconds. This may be due to stuck internal components of the variable cam timing (VCT) unit. To correct the condition, follow the Service Procedure to replace the VCT units.
SSM 51385	2023-03-04. Service bulletin. Some 2019-2023 Edge/Nautilus vehicles equipped with a 2.0L engine may exhibit a repeat block heater failure. This may be caused by air in the engine cooling system. The WSM replacement procedure has been updated to include the Engine Cooling System Draining, Vacuum Filling and Bleeding procedure found in Section 303-03A Engine Cooling - 2.0L EcoBoost (184kW/250PS) MI4, General Procedures as the final step. The block heater should not be tested unless all the air has been removed from the engine cooling system following this procedure.
TSB 22-2376	2022-10-31. Service bulletin. Some 2019-2022 Edge/Nautilus vehicles equipped with a 2.7L EcoBoost engine may exhibit a ticking/tapping or rattle type noise from the top front cover area of the engine on initial start-up after a cold soak of 6 hours or more that may last for 2-5 seconds. This may be due to stuck internal components of the variable cam timing (VCT) unit. To correct the condition, follow the Service Procedure to replace the VCT units.