WenmarOpen by Wenmar Pro

Service bulletin TSB 26-2093

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 id11030102
Published by NHTSA2026-03-18
Manufacturer's numberTSB 26-2093
Manufacturer's date2026-03-10
NHTSA componentFUEL/PROPULSION SYSTEM; UNKNOWN OR OTHER

NHTSA's summary

This article supersedes TSB 25-2487 to update the symptoms in the TSB title and issue, and update the parts list to include additional parts for the repair Some vehicles listed in the Model Section above may exhibit diagnostic trouble codes (DTCs) P3426, P3402, P3450, And/Or P3442 stored in the PCM. This may be due to a restriction in the cylinder deactivation solenoid oil feed tube.

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

Trouble codes named

P3402, P3426, P3442, P3450

Vehicles listed
FORD F-1502025

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

Recalls for the same vehicles and component
20264322026-09-09. Fuel System
26V5780002026-09-09. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:MOUNTING

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 551112026-09-01. Service bulletin. Some 2022-2026 F-150 Lightning vehicles may exhibit a reduced distance to empty (DTE) projection, a high voltage battery pack state of charge (SOC) that drops from 100% to less than 90% within 60 seconds of being driven, and an inability to reach a target SOC using the scheduled charging feature without any diagnostic trouble codes (DTCs) in the battery energy control module (BECM). This may be due to an issue in one or more cells within the high voltage battery pack. To correct the condition, run the "BECM Battery Health" application using the latest software version of the Ford Diagnosis and Repair System (FDRS). If any cells are identified as exceeding state of charge and/or capacity thresholds, refer to the Workshop Manual (WSM), Section 414-03A High Voltage Battery, Mounting and Cables > Diagnosis and Testing > High Voltage Battery, Mounting and Cables Electric. Perform Pinpoint Test High Voltage Battery Pack Cell Balancing Faults, Step 4 (PPT Step AO4 for 2022-2024 vehicles/PPT Step AQ4 for 2024-2026 vehicles) and proceed with Pinpoint Test directions following the results of Step 4.
TSB 26-23602026-08-10. Service bulletin. Some of the vehicles listed in the Model Statement above may exhibit an intermittent extended crank with no relevant diagnostic trouble codes (DTCs) present. This may be due to various software parameters in the powertrain control module (PCM).
SSM 550322026-07-29. Service bulletin. Some 2022-2026 F-150 Lightning vehicles may exhibit a reduced distance to empty (DTE) projection, a high voltage battery pack state of charge (SOC) that drops from 100% to less than 90% within 60 seconds of being driven, and an inability to reach a target SOC using the scheduled charging feature without any diagnostic trouble codes (DTCs) in the battery energy control module (BECM). This may be due to an issue in one or more cells within the high voltage battery pack. To correct the condition, run the "BECM Battery Health" application using the latest software version of the Ford Diagnosis and Repair System (FDRS). If any cells are identified as exceeding state of charge and/or capacity thresholds, refer to the Workshop Manual (WSM), Section 414-03A High Voltage Battery, Mounting and Cables > Diagnosis and Testing > High Voltage Battery, Mounting and Cables - Electric > Pinpoint Test AP > Step AP4 and continue diagnosis. If all cells are within state of charge and capacity thresholds or DTCs are present in the BECM, refer to the WSM for normal diagnosis. For claiming, use causal part 10D672 and labor op
SSM 550312026-07-28. Service bulletin. Some 2021-2026 Ford/Lincoln vehicles may exhibit various symptoms including but not limited to the auto start/stop system not operating as intended with a "Check Charging System" message in the instrument panel cluster (IPC) while the charging system is operating properly with no charging related diagnostic trouble codes (DTC) stored. This may be due to someone using an aftermarket programmer to change the body control module (BCM) configuration to disable the auto start/stop system or perform other unsupported programming modifications. To correct this condition on F-150 and Bronco vehicles, download and run the Ford Diagnosis and Repair System (FDRS) application titled "BCM-Charging System Configuration Correction". Running this application will determine if the BCM configuration was modified by the customer and if so, provide the option to return the configuration back to factory settings. For other vehicle models exhibiting concerns related to unsupported aftermarket BCM programming, submit a Technical Support Request (TSR) requesting support to revert the BCM configuration
SSM 548742026-06-03. Service bulletin. Some 2024-2026 F-150 vehicles may exhibit an incorrect fuel gauge indication when distance to empty (DTE) is below 50 miles. Workshop Manual (WSM), Sections 413-01 > Description and Operation > Instrument Panel Cluster (IPC) - System Operation and Component Description along with 413-01 > Diagnosis and Testing > Pinpoint Test D have been updated for this concern.
TSB 26-21122026-03-23. Service bulletin. This bulletin supersedes TSB 26-2059. Reason For Update: To add missing labor operations. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: - No upshift past second gear - Unable to achieve third gear ratio - Illuminated malfunction indicator lamp (MIL) with DTCs P0757 and P2701 This may be due to a damaged one-way clutch (OWC).
SSM 545932026-02-27. Service bulletin. Some 2024-2025 F-150, Expedition/Navigator, Escape/Corsair, Bronco, Explorer, Mustang, Maverick vehicles equipped with a 1.5/2.0/2.3/3.5L EcoBoost engine and built on 01-Oct-2024 and through 31-May-2025 may exhibit an extended crank condition, strong fuel smell in the engine oil, high engine oil level and/or may have various drivability diagnostic trouble codes (DTCs) stored in the powertrain control module (PCM) with an illuminated malfunction indicator lamp (MIL). This may be due to an internal fuel leak of the high-pressure fuel pump causing fuel to enter the crankcase and reduce fuel pressure in the direct injection fuel rail. Diagnose this condition using Pinpoint Test HP located in Workshop Manual (WSM), Section 303-04. If no DTCs are stored in the PCM, proceed from Step HP1 to Step HP5 and continue testing. Repair as necessary outside of this article. For claiming, if high-pressure fuel pump replacement is required, use causal part number 9D376 and labor operation code 9543A. If the root cause is identified as anything other than the fuel injection pump, claim the repair outside of this article.
TSB 25-25832025-12-09. Service bulletin. Some of the vehicles listed in the Model statement above may exhibit an inaccurate and/or inoperative L/100Km fuel economy scale in the instrument panel cluster (IPC). This only affects the L/100Km fuel economy scale. This may be due to the software in the IPC.
SSM 543172025-10-28. Service bulletin. Some 2021-2025 F-150, 2022-2025 Expedition/Navigator, 2023-2025 F-Super Duty, 2024-2025 Ranger and 2026 Transit vehicles may exhibit a discharged battery and/or a no crank/no start condition. The vehicle may also exhibit a clicking noise from the trailer module (TRM) while the vehicle is off. This may be due to software in the TRM.<br /><br />Verify the TRM software part number in the vehicle using Ford diagnosis and repair system (FDRS) to be PC3T-19J297-BF, PC3T-19J297-FF, ML3T-19J297-CD or ML3T-19J297-GD. To confirm a vehicle is equipped with a certain software level, review the software information by hovering over the "Diagnostics" tab in Professional Technician System (PTS) and selecting "Vehicle Software". If one of the listed software part numbers is present, follow the Service Procedure to reprogram the TRM. For vehicles with any other software part number in the TRM, refer to Workshop Manual (WSM), Section 414-01 to continue with normal diagnostics outside of this article. For claiming use causal part 19H332 and labor operation 12651D and 12651D4 of the Service Labor Time Standards (SLTS)
SSM 541382025-08-19. Service bulletin. Some 2024-2025 F-150, Expedition/Navigator, Escape/Corsair, Bronco, Explorer, Mustang, Maverick vehicles equipped with a 1.5/2.0/2.3/3.5L EcoBoost engine and built on 01-Oct-2024 and through 31-May-2025 may exhibit an extended crank condition, strong fuel smell in the engine oil, high engine oil level and may have various drivability diagnostic trouble codes (DTCs) stored in the powertrain control module (PCM) with an illuminated malfunction indicator lamp (MIL). This may be due to an internal fuel leak of the fuel injection pump causing fuel to enter the crankcase and reduce fuel pressure in the high pressure fuel rail. Diagnose this condition using Pinpoint Test HP located in the Workshop Manual, Section 303-04A. If no DTCs are stored in the PCM, proceed from Step HP1 to Step HP5 and continue testing. For claiming, if fuel injection pump replacement is required, use causal part number 9D376 and labor operation code 9543A. If the root cause is identified as anything other than the fuel injection pump, claim the repair outside of this article. Note: Components damaged as a result of this failure mode