Service bulletin TSB 18-2378

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	10153937
Published by NHTSA	2019-03-04
Manufacturer's number	TSB 18-2378
Manufacturer's date	2018-12-17
NHTSA component	FUEL SYSTEM, GASOLINE

NHTSA's summary

Some 2015-2019 Edge, 2016-2018 MKX, and 2019 Nautilus vehicles equipped with all wheel drive (AWD) may exhibit a fuel slosh noise primarily when the fuel tank is over 3/4 full and when driving at low speeds. This may be due to the fuel moving around in the fuel tank. Follow the Service Procedure steps to correct the condition.

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

Fuel system

Vehicles listed
FORD EDGE	2015, 2016, 2017, 2018, 2019
LINCOLN MKX	2016, 2017, 2018
LINCOLN MKX	2019

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
SSM 54504	2026-01-21. Service bulletin. Some 2016-2017 Edge/MKX, 2017 Continental/Fusion/MKZ vehicles equipped with a 2.7L or 3.0L EcoBoost engine and built on 1-Apr-2016 and through 1-Jan-2017 may exhibit white or blue smoke from the exhaust, rough idle in neutral or park at normal operating temperature or after a hot restart. The vehicle may also exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0300, P0301, P0302, P0303, P0304, P0305, P0306 and/or P0316, P0524 and/or P06DD with excessive oil consumption. Oil consumption may be 1 Liter (1 quart) in less than 4,800 km (3,000 miles). This may be due to the valve guides. To correct the condition replace the cylinder heads. During service and repair, achieving proper torque of the crankshaft pulley bolt is critical. Incorrect torque may allow the bolt to loosen resulting in timing gear failure and engine damage. Replacement of the bolt is critical to the repair. The bolt requires a 4 stage torque procedure. Hold the pulley using a universal holding tool OTC 4754 or equivalent. Refer to Workshop Manual, Section 303-01. The bolt torque procedure can be
25E02	2025-11-03. Emissions. The affected vehicles have an emissions control system that does not account for certain in-use conditions and might not control tailpipe emissions effectively over time.
TSB 25-2395	2025-09-03. Service bulletin. This article supersedes TSB 24-2345 to update the Service Procedure. Some of the vehicles listed in the Model statement above may exhibit an oil leak from the engine oil pan RTV seal. This may be due to a lack of RTV adhesion.
SSM 49924	2021-08-02. Service bulletin. Some 2019 MKC, 2019-2021 Edge/Nautilus/Escape/Ranger/Explorer, 2020-2021 Corsair, and 2021 Bronco Sport vehicles equipped with 2.0L and 2.3L EcoBoost engines may exhibit a light to moderate ticking type noise at idle (600-700 RPM). The noise is usually more prominent in the area of the high-pressure fuel pump, located on the top of the engine just behind the number 4 ignition coil. This noise is not detrimental to engine function and has no short or long-term effects on engine durability. This an operating characteristic of these engines and no repairs should be attempted.
SSM 49328	2020-12-04. Service bulletin. Some 2019 MKC, 2019-2020 Edge/Nautilus/Escape/Ranger, 2020 Corsair, 2019-2021 Explorer vehicles equipped with 2.0L and 2.3L EcoBoost engines may exhibit a light to moderate ticking type noise at idle (600-700 RPM). The noise is usually more prominent in the area of the high-pressure fuel pump, located on the top of the engine just behind the number 4 ignition coil. This noise is not detrimental to engine function and has no short or long-term effects on engine durability. This an operating characteristic of these engines and no repairs should be attempted.
TSB 20-2194	2020-07-06. Service bulletin. Some 2019 Edge/Nautilus vehicles may exhibit a slow fuel fill and/or spit back during refueling. This may be due to the software in the powertrain control module (PCM). To correct the condition, follow the Service Procedure to reprogram the PCM.
TSB16-0094	2017-02-10. Service bulletin. SOME 2015-2016 EDGE AND 2016 MKX VEHICLES EQUIPPED WITH A 2.7L ECOBOOST ENGINE AND BUILT ON 10/29/2015 AND THROUGH 4/1/2016 MAY EXHIBIT A KNOCKING/TAPPING NOISE THAT CAN BE HEARD IN THE FUEL FEED TUBE THAT ATTACHES TO THE HIGH PRESSURE FUEL PUMP ON THE ENGINE. THIS MAY BE DUE TO A LOOSE CHECK VALVE LOCATED IN THE FUEL FEED TUBE. FOLLOW THE TSB SERVICE PROCEDURE STEPS TO CORRECT THE CONDITION.
16-0045	2016-06-22. Service bulletin. 2.0L ECOBOOST - FUEL ODOR ISSUE Some 2013-2016 Escape, 2015-2016 MKC vehicles built on or before 12/15/2015, 2013-2016 Fusion, MKZ, 2013-2015 Explorer, 2013-2014 Focus ST and Edge vehicles equipped with 2.0L EcoBoost engines may exhibit fuel odor originating from the positive crankcase ventilation (PCV) hose. SERVICE PROCEDURE 1. Is the vehicle a 2016 Escape or MKC? a. Yes - check the vehicle build date. Was the vehicle built on or before 12/15/2015? (1) Yes - proceed to Step 2. (2) No - this article does not apply. b. No - proceed to Step 2. 2. Inspect the PCV hose to make sure it is properly connected to the valve cover and the low pressure intake duct. a. For Escape and Focus ST vehicles remove the cowl panel grille to access the hose. Refer to Workshop Manual (WSM), Section 501-02. b. For Edge vehicles remove the air cleaner outlet pipe to access the hose. Refer to WSM, Section 303-12. 3. Does the PCV hose exhibit a fuel smell or was the hose disconnected? a. Yes - replace hose and reassemble the vehicle. b. No - Refer to WSM, Section 303-13 for normal diagnosis.