Service bulletin 23N01

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	10243426
Published by NHTSA	2023-10-03
Manufacturer's number	23N01
Manufacturer's date	2023-09-30
NHTSA component	ENGINE AND ENGINE COOLING; POWER TRAIN; FUEL SYSTEM, DIESEL

NHTSA's summary

Certain 2015-2019 Model Year Transit Vehicles with 3.2L Diesel Engine - Crankcase Ventilation Hose Assembly Replacement and Powertrain Control Module Software Update

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, Fuel system, Transmission and driveline

Vehicles listed
FORD TRANSIT	2015, 2016, 2017, 2018, 2019

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

Recalls for the same vehicles and component
2019538	2019-10-25. Powertrain
19V767000	2019-10-25. POWER TRAIN:DRIVELINE:DRIVESHAFT
19V103000	2019-02-21. POWER TRAIN:DRIVELINE:DRIVESHAFT; POWER TRAIN:DRIVELINE:UNIVERSAL JOINT
2017320	2017-06-27. Powertrain
17V408000	2017-06-26. POWER TRAIN:DRIVELINE:DRIVESHAFT
16V618000	2016-08-24. FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL
2016412	2016-08-23. Fuel System
15V865000	2015-12-22. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT
2015608	2015-12-21. Powertrain
2014500	2014-11-05. Fuel System

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.
SSM 54366	2025-11-19. Service bulletin. Some 2015-2021 Ford and Lincoln vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0011, P0012, P0014, P0015, P0016, P0017, P0018, P0019, P0021, P0022, P0024 and/or P0025. Pinpoint test HK in the Powertrain Control and Emissions Diagnosis (PC/ED) or in Section 303-14 of the Workshop Manual (WSM) has been updated to address this concern.
TSB 24-2099	2024-05-02. Service bulletin. This article supersedes TSB 22-2444 to add 2024 model year vehicles. Some 2015-2024 Transit vehicles equipped with rear wheel drive (RWD), single rear wheel (only), and U-joints at the transmission flange and rear driveshaft may experience a boom/hum/moan noise from the rear while driving. This noise is most noticeable at highway speeds: 112-121 km/h (70-75 mph) for 4.10 axle ratio 121-128 km/h (75-80 mph) for 3.73 axle ratio 136-145 km/h (85-90 mph) for 3.31 axle ratio The noise may also be present to a lesser degree at roughly half of the noted speeds. This may be due to a 2nd order driveline frequency transmitted through the rear driveshaft, rear axle and into the body through the leaf springs.
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 52314	2024-03-20. Service bulletin. During service and repair requiring removal and replacement of a crankshaft bolt and/or crankshaft damper, achieving proper torque of the crankshaft pulley bolt is critical. Incorrect torque may allow the bolt to loosen resulting in the timing gear breaking and engine damage. Replacement of the bolt is critical to the repair and accurately following the installation procedure in the Workshop Manual (WSM) Section, 303-01 is extremely important. The bolt torque procedure can be found in the crankshaft front seal removal and installation procedure or in the engine assembly procedure.
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
23M01	2024-02-01. Service bulletin. Certain 2015-2019 Ford Transit 3.2L Diesel Replace Diesel Particulate Filter (DPF)
TSB 22-2444	2022-12-02. Service bulletin. This article supersedes TSB 22-2271 to update the vehicle model years affected. Some 2015-2023 Transit vehicles equipped with rear wheel drive (RWD), single rear wheel (only), and U-joints at the transmission flange and rear driveshaft may experience a boom/hum/moan noise from the rear while driving. This noise is most noticeable at highway speeds: 112-121 km/h (70-75 mph) for 4.10 axle ratio 121-128 km/h (75-80 mph) for 3.73 axle ratio 136-145 km/h (85-90 mph) for 3.31 axle ratio The noise may also be present to a lesser degree at roughly half of the noted speeds. This may be due to a 2nd order driveline frequency transmitted through the rear driveshaft, rear axle and into the body through the leaf springs. To correct the condition, follow the Service Procedure to install a driveshaft torsional damper. NOTE: The torsional damper will not resolve a vibration.
SSM 51033	2022-08-22. Service bulletin. Some 2015 Transit vehicles equipped with a 3.2L Duratorq-TDCi engine built on or after 06-Mar-2015 may set diagnostic trouble code (DTC) P2539 during a KOEO self-test. This DTC sets when the powertrain control module (PCM) does not detect a change in the fuel delivery pressure switch after engine shutdown. If DTC P2539 is not present after performing a key on engine running (KOER) self-test, there is no illuminated malfunction indicator lamp (MIL) while the engine is running, no drivability concerns, and no other DTCs, then P2539 should be ignored. No further service action is required.