Service bulletin 16U11

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	10183752
Published by NHTSA	2020-12-07
Manufacturer's number	16U11
Manufacturer's date	2016-04-19
NHTSA component	ENGINE AND ENGINE COOLING

NHTSA's summary

In some of the affected vehicles, the engine coolant to water concentration may be less than specification. Low coolant concentration could result in reduced cooling system freeze protection, reduced corrosion resistance, heater and radiator performance degradation, and water pump noise or leaks

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

Vehicles listed
FORD F-150	2016
FORD TRANSIT	2016

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

Recalls for the same vehicles and component
20V098000	2020-02-21. ENGINE; EQUIPMENT:ELECTRICAL
19V278000	2019-04-08. ENGINE; EQUIPMENT:ELECTRICAL
18V894000	2018-12-18. ENGINE
16V618000	2016-08-24. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
SSM 55098	2026-08-25. Service bulletin. Some 2013-2016 Super Duty vehicles equipped with a 6.7L diesel engine and 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may not pass a state smog test due to the exhaust gas system (EGS) monitor that will not run after completing the exhaust gas sensor drive cycle located within Section 2 of the Powertrain Control/Emissions Diagnostics (PC/ED) Manual > Drive Cycles. This may be due to the vehicles diesel oxidation catalyst (DOC) age counter being under the 120-minute age requirement. There is an all-new "PCM Catalytic Converter Age Evaluation" application within the latest version of the Ford Diagnosis and Repair System (FDRS). Use this new FDRS application to determine the age (in minutes) of the DOC. If the age is less than 120 minutes, perform manual regenerations to increase the catalyst age counter to satisfy the monitor age requirement. If further assistance is needed, contact the technical assistance center (TAC). Note: this article only applies to the EGS monitor. Problems with other vehicle monitors not running successfully must be addressed using normal diagnostics located i
SSM 54690	2026-04-06. Service bulletin. Some 2013-2016 Super Duty vehicles equipped with a 6.7L diesel engine and 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may not pass a state smog test due to the exhaust gas system (EGS) monitor that will not run after completing the Exhaust Gas Sensor drive cycle located within Section 2 of the Powertrain Control/Emissions Diagnostics (PC/ED) Manual > Drive Cycles. This may be due to the vehicles diesel oxidation catalyst (DOC) age counter being under the 120-minute requirement. Engineering is investigating this issue and working on a solution.
TSB 24-2098	2024-04-04. Service bulletin. This article supersedes TSB 23-2330 to update the Parts List. Some 2015-2017 F-150 vehicles equipped with a 2.7L EcoBoost engine may exhibit an oil leak from the oil pan RTV seal. This may be due to various concerns with the oil pan. To correct the condition, follow the Service Procedure to replace the oil pan with the later style oil pan.
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.
SSM 52334	2024-03-20. Service bulletin. Some 2011-2024 Mustang and F-150 vehicles equipped with a 5.0L engine may exhibit a tick tap and/or typewriter ticking noise at idle after an engine oil change. It is often referred to as typewriter noise because of its similarity to the sound of a mechanical typewriter. The noise in question may be heard on some engines when engine temperatures reach 150°F (65°C) or higher and engine speed is at idle up to approximately 1700 RPM. It can typically be heard at the front wheel well and is often isolated to the transmission bell housing or oil pan area. The typewriter noise tick rate can be faster or slower and is not detrimental to the engine function or durability and has no short or long term effects on the engine. This an operating characteristic of the 5.0L engine and no repairs should be attempted. This information along with an example audio clip has been added to the WSM Section 303-00 Engine System General Information > Diagnosis and Testing > Engine > PPT F > Step F2.
TSB 23-2330	2024-03-07. Service bulletin. This article supersedes TSB 23-2083 to update the Service Procedure and the Part List. Some 2015-2017 F-150 vehicles equipped with a 2.7L EcoBoost engine may exhibit an oil leak from the oil pan RTV seal. This may be due to various concerns with the oil pan. To correct the condition, follow the Service Procedure to replace the oil pan with the later style oil pan.
23N04	2024-03-05. Service bulletin. Certain 2015-2019 Model Year Transit Vehicles Equipped With 3.2L Diesel Engine - Exhaust Gas Temperature (EGT) Sensor Replacement
23N01	2023-10-03. Service bulletin. Certain 2015-2019 Model Year Transit Vehicles with 3.2L Diesel Engine - Crankcase Ventilation Hose Assembly Replacement and Powertrain Control Module Software Update
TSB 23-2083	2023-04-04. Service bulletin. Some 2015-2017 F-150 vehicles equipped with a 2.7L EcoBoost engine may exhibit an oil leak from the oil pan RTV seal. This may be due to various concerns with the oil pan. To correct the condition, follow the Service Procedure to replace the oil pan with the later style oil pan.
SSM 51296	2023-01-31. Service bulletin. Some 2015-2020 F-150 vehicles equipped with a 2.7L, 3.5L or 5.0L engine may require replacement of the long block engine assembly. New service kits have been released which include all the one-time-use components required in the service procedure for removal and replacement of the long block engine assembly. Refer to the Ford Electronic Parts Catalog (ECAT) for long block service kit part number by application.