NHTSA ID Number: 11034010
Manufacturer Communication Number: TSB 26-2256
TSB/Document Date: 2026-06-22
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
TECHNICAL SERVICE BULLETIN
Upper Engine Ticking/Tapping Noise At Idle
26-2256
18 June 2026
This bulletin supersedes 25-2572. Reason for update: 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 (F650/F750-Engine Replacement), 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 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.
Model:
Ford
2021-2025 E-Series
Engine: 7.3L
2021-2025 F-650/F-750
Engine: 7.3L
2020-2025 F-53 Motorhome/F-59 Commercial Stripped Chassis
Engine: 7.3L
2020-2025 F-Super Duty
Engine: 6.8L (2023-2025)
Engine: 7.3L
Markets: North American markets only
Issue: 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 rough engine performance, engine misfire, or a MIL with DTCs P0301-P0308 in the PCM. This may be due to camshaft and/or valve tappet
having excess wear within the engine assembly.
Action: For vehicles that meet all of the criteria in the Issue and Model statements, follow the Service Procedure to diagnose the vehicle.
Parts - F-Super Duty Pickup And Chassis Cab - Camshaft And Tappet Repair
Service Part Number Claim Quantity Description
LC3Z-6250-D
1
Camshaft/Tappet Service Kit
W715106-S439
2
W709771-S440
2
Transmission Mount Nuts
DS7Z-19D690-A
1
Air Conditioning (A/C) Condenser Line Gasket and Seal O Ring
W715131-S442
1
Transmission Cooler Bolt (10R Transmission Only)
FOPZ-9229-A
1
Fuel Injector Seal Kit
W714717-S439
2
Y Pipe To Muffler Bolts (Pickup Only)
Note
1 Kit Includes 10 Seal O Rings
W719575-S900
2
Y Pipe To Muffler Bolts (Chassis Cab Only)
W706447-S437
3
Power Steering Pump Bolt (2020-2022 Only)
W715068-S437
4
Power Steering Pump Bolt (2023-2025 Only)
W714286-S442
4
Exhaust Hanger Bolts (2023-2025 Only)
F1AZ-6731-BD
1
LC3Z-8C387-A
1
Front Timing Cover Gasket
W716090-S437
4
Exhaust Manifold Heat Shield Bolts
F1VY-8255-A
1
Thermostat Housing O-Ring Gasket
Parts - F-Super Duty Pickup And Chassis Cab - Engine Replacement
Service Part Number Claim Quantity Description
6006
1
Engine Long Block - Refer To The Parts Catalog For The VIN Specific Application
LC3Z-6781-A
1
Engine Installation Service Kit
W715106-S439
2
W709771-S440
2
Transmission Mount Nuts
DS7Z-19B596-A
1
Air Conditioning (A/C) Condenser Line Gasket And Seal O Ring
W712861-S439
8
Engine Support Insulator Bracket Bolt
W711336-S441
6
LH/RH Engine Support Insulator Bracket Nuts
W714717-S439
2
Y Pipe To Muffler Bolts (Pickup Only)
W719575-S900
2
Y Pipe To Muffler Bolts (Chassis Cab Only)
W706447-S437
3
Power Steering Pump Bolt (2020-2022 Only)
W715068-S437
4
Power Steering Pump Bolt (2023-2025 Only)
W714286-S442
4
Exhaust Hanger Bolts (2023-2025 Only)
LC3Z-12A227-A
1
Crankshaft Sensor Ring
W716090-S437
4
Exhaust Manifold Heat Shield Bolts
Parts - E-Series - Camshaft And Tappet Repair
Service Part Number Claim Quantity Description
LC3Z-6250-D
1
Camshaft/Tappet Service Kit
FOPZ-9229-A
1
Fuel Injector Seal Kit
W520114-S440
4
LH/RH Engine Mount Nuts
9W7Z-19B596-A
1
Air Conditioning (A/C) Condenser Gasket And Seal O Ring
391308-S102
1
Transmission Dipstick Tube O-Ring
Note
1 Kit Includes 10 Seal O Rings
W715068-S437
3
F1AZ-6731-BD
1
LC3Z-8C387-A
1
Front Timing Cover Gasket
W716090-S437
4
Exhaust Manifold Heat Shield
F1VY-8255-A
1
Thermostat Housing O Ring Gasket
Parts - E-Series - Engine Replacement
Service Part Number Claim Quantity Description
6006
1
Engine Long Block - Refer To The Parts Catalog For The VIN Specific Application
LC3Z-6781-A
1
Engine Installation Service Kit
W715068-S437
3
Power Steering Pump Bolt (2023-2025 Only)
9W7Z-19B596-A
2
Air Conditioning (A/C) Condenser O-Ring
391308-S102
1
Transmission Dipstick O-Ring
W520114-S440
4
LH/RH Engine Mount Nut
N807479-S102
2
Transmission Support Mount Nut
BC2Z-3F887-A
1
N807218-S441
8
W714735-S439
8
LC3Z-12A227-A
1
Crankshaft Sensor Ring
W716090-S437
4
Exhaust Manifold Heat Shield Bolts
Parts - F-650/F-750 - Camshaft And Tappet Repair
Service Part Number Claim Quantity Description
LC3Z-6250-D
1
Camshaft/Tappet Service Kit
W715106-S439
2
W709771-S440
9
Transmission Mount Nut
9W7Z-19B596-A
2
Air Conditioning Condenser Line Gasket and Seal O Ring
391308-S102
1
Transmission Dipstick Seal O Ring
FOPZ-9229-A
1
Fuel Injector Seal Kit
W716090-S437
4
Exhaust Manifold Heat Shield Bolts
F1VY-8255-A
1
Engine Thermostat Housing O-Ring Gasket
F1AZ-6731-BD
1
LC3Z-8C387-A
1
Front Cover Gasket
Note
1 Kit Includes 10 Seal O Rings
Parts - F-650/F-750 - Engine Replacement
Service Part Number Claim Quantity Description
6006
1
Engine Long Block - Refer To The Parts Catalog For The VIN Specific Application
LC3Z-6781-A
1
Engine Installation Service Kit
9W7Z-19B596-A
2
Air Conditioning (A/C) Condenser Line Gasket And Seal O Ring
391308-S102
1
Transmission Dipstick O-Ring
LC3Z-12A227-A
1
Crankshaft Sensor Ring
W716090-S437
4
Exhaust Manifold Heat Shield Bolts
W715106-S439
2
W712861-S439
8
Engine Support Insulator Bracket Bolts
W709771-S440
9
LH/RH Engine Mount Bracket/Transmission Support insulator nuts
Parts - F-53 Motorhome/F-59 Stripped Chassis Cab - Camshaft And Tappet Repair
Service Part Number Claim Quantity Description
Note
LC3Z-6250-D
1
Camshaft/Tappet Service Kit
W715106-S439
2
W709771-S440
2
Transmission Mount Nuts
FOPZ-9229-A
1
Fuel Injector Seal Kit
1W1Z-19E889-BB
1
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TSB/Document ID: TSB 26-2256
Replacement Service Bulletin Number:
MFR Communication Date: 2026-06-19
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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