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Service bulletin TSB 26-2256

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)
TypeService bulletin
NHTSA id11034010
Published by NHTSA2026-06-22
Manufacturer's numberTSB 26-2256
Manufacturer's date2026-06-19
NHTSA componentENGINE; UNKNOWN OR OTHER

NHTSA's summary

This article supersedes TSB 25-2572 to update the Parts List to correct the part number LC3Z-6006-L to LC3Z-6781-A, remove the flex plate bolts AL3Z-6379-BA from the parts list as these bolts are in kit LC3Z-6781-A, update the claim quantity of the part number W709771-S440 to 9 pieces (F-650/F750-Engine Replacement), W706447-S437 and W715068-S437 to 4 pieces, W712861-S439 to 8 pieces(F-Super Duty Pickup And Chassis Cab-Engine Replacement) / 8 pieces (F-53 Motorhome/F-59 Stripped Chassis Cab/F-650,F750 Engine Replacement) / W714286-S442 to 4 pieces (F-Super Duty Pickup And Chassis Cab-Camshaft and Tappet Repair / F-Super Duty Pickup And Chassis Cab-Engine Replacement), include LC3Z-6020-A for the Engine replacement lists, include 1 fuel injector seal kit to the Camshaft and Tappet repair lists, include 4 pieces of W520114-S440 to the E Series-Camshaft and Tappet Repair list, and update the engine oil part numbers XO-5W30-Q1SP and CXO-5W30-LSP6. Some of the vehicles listed in the Model statement above may exhibit an upper engine ticking or tapping noise at idle. Customers may also report experiencing ro

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 E-3502021, 2022, 2023, 2024, 2025
FORD E-4502021, 2022, 2023, 2024, 2025
FORD F-250 SD2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
FORD F-350 SD2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
FORD F-450 SD2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
FORD F-532020 to 2025
FORD F-550 SD2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
FORD F-592020 to 2025
FORD F-650 SD2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
FORD F-750 SD2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
FORD F-750 SD2025 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
25V7930002025-11-17. ENGINE
20256302025-11-14. Engine
20206332020-12-21. Engine
20V7950002020-12-17. ENGINE

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
TSB 26-23752026-08-19. Service bulletin. This article supersedes TSB 26-2050 to increase the labor operation allowance of labor operations A and B. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Poor shift quality Illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTC) P2704 and P0771 stored in the PCM/TCM. This may be due to a calibration in the TCM and/or wear between the input shaft and the E clutch hub causing the input shaft O-rings to become damaged resulting in an open E clutch circuit. Additional model information: 6.7L Diesel Engine 2022-2024 F-550 or F-600 F-Super Duty vehicles built on or before 15-May-2024 with over 5,000 miles (8,000km)
25M012026-08-04. Other. Customer Satisfaction Program 25M01 Certain 2021 Model Year F-150 3.0L Diesel Engine and 2020-2022 Model Year Super Duty with 6.7L Diesel Engine Nitrogen Oxide (NOx) Sensor Replacement, If Required After Dealer Evaluation Reference: Emissions Recalls 22E02, 22E04, 23E01, and 25E09
25E092026-07-01. Emissions. NEW VEHICLE DEMONSTRATION / DELIVERY HOLD Emissions Recall 25E09 Certain 2022 Model Year F-250 - F-600 Vehicles with 6.7L Engines Powertrain Control Module Programming and Particulate Matter Sensor Installation
25N142026-07-01. Other. Certain 2022 Model Year F-250 - F-600 with 6.7L Diesel Engines One-Time Replacement for Diesel Particulate Filter Assembly Failures, If Required After Dealer Evaluation
22N05-S32026-07-01. Service bulletin. Customer Satisfaction Program 22N05 - Supplement #3 Certain 2022 Model Year Super Duty with 6.7L Diesel Engine One-Time Replacement for Diesel Particulate Filter Assembly If Required After Dealer Evaluation
SSM 547382026-04-14. Service bulletin. Some 2023-2025 Escape 1.5L/F-Super Duty/Transit vehicles may exhibit a lack of cooling from the heating, ventilation, and air conditioning (HVAC) system, which may be accompanied by abnormal rattling, grinding and/or squealing noises from the engine compartment. This may be due to damage to the air conditioning (A/C) compressor internal components and/or clutch assembly. Confirm ambient air temperature is above approximately 0°C (32.0°F). On the HVAC controls, set the temperature to full cold (not MAX A/C), select PANEL, set the fan speed to the highest setting and select the A/C button (indicator on). If the A/C compressor clutch engages and the A/C compressor is noisy, and/or the belt is slipping on the A/C compressor pulley or the A/C compressor is seized, install a new A/C compressor as indicated in Section 412-00 of the Workshop Manual (WSM). For claiming, use causal part 19703 and labor operation MT19700SSM up to 0.3 hours to check for a damaged compressor. If the compressor requires replacement, claim labor operations 19700A and 19700A4. Also claim available Service Labor Time Standards (SLTS) op
SSM 546782026-04-06. Service bulletin. Some 2021-2026 F-150 vehicles equipped with a 5.0L/5.2L engine, 2021-2025 F-Super Duty/F-53 Motorhome/F59 Commercial Stripped Chassis vehicles equipped with a 6.8L/7.3L engine and 2021-2025 E-Series/F-650/F-750 vehicles equipped with a 7.3L engine may exhibit a rattle/scraping noise upon startup that may remain after the engine is running. Workshop Manual (WSM),
ECM-25.10.21.2 SuperDuty2026-02-25. Over-the-air update. Quality improvements include: -Updates the emissions control system, improving performance in order to ensure meeting regulatory requirements
SSM 545842026-02-17. Service bulletin. Some 2023-2026 F-Super Duty vehicles that require replacement of the heating ventilation and air conditioning (HVAC) module may have previously experienced a PMI that will not complete during installation. This may be due to a concern with the PMI application within the Ford Diagnosis and Repair System (FDRS) scan tool. To correct this condition, navigate to the FDRS application HVAC Programmable Module Installation (PMI). Click on the download button (if not already downloaded) or the refresh button on the right side of the application (if the application is already downloaded). Hover your mouse over the application name and verify the application version reads G2327867-5.0 or higher. Once the application is confirmed to be updated, run the HVAC PMI application.
25B652025-12-30. Other. Certain 2024-2026 Model Year F-650 - F-750 Medium-Duty Trucks equipped with 7.3L engine and 6R140 Transmission Reprogram the Powertrain Control Module