NHTSA ID Number: 11030102
Manufacturer Communication Number: TSB 26-2093
TSB/Document Date: 2026-03-18
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.
TECHNICAL SERVICE BULLETIN
Illuminated MIL With DTCs P3426, P3402, P3450, And/Or P3442 Stored In
The PCM
26-2093
11 March
2026
This bulletin supersedes 25-2487. Reason for update: update the symptoms in the TSB title and issue, and update
the parts list to include additional parts for the repair
Model:
Ford
2025 F-150
Built on 1-Jan-2025 and through 30-Apr-2025
Engine: 5.0L
Markets: North American markets only
Issue: Some of the vehicles listed in the Model Section above may exhibit an illuminated MIL with 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.
Action: For vehicles that meet all of the criteria in the Issue and Model statements, follow the Service Procedure to
replace the affected cylinder deactivation solenoid oil feed tube.
Parts - Parts To Replace The Left Side Deactivation Solenoid Oil Feed Tube
Service Part
Number
Claim
Quantity
ML3Z-6K602-B
1
ML3Z-6584-C
1
ML3Z-6584-F
1
As Needed
Number in
Package
Description
Note
Left-Oil Tube
Left-Valve Cover Gasket
Vehicles with single
generator
Left-Valve Cover Gasket
Vehicles with dual
generator
Motorcraft® High Performance Engine
RTV Silicone
Parts - Parts To Replace The Right Side Deactivation Solenoid Oil Feed Tube
Service Part
Number
Claim
Quantity
Number in
Package
Description
Note
ML3Z-6K602-A
1
Right-Oil Tube
ML3Z-6584-B
1
Right-Valve Cover Gasket
JR3Z-9276-B
1
Right-Valve Cover Inner Gasket
ML3Z-9J323-B
1
High Pressure Fuel Tube
JT4Z-9E583-A
1
High-Pressure Fuel Pump O-Ring Seal
As Needed
Motorcraft® High Performance Engine
RTV Silicone
VC-13-G
As Needed
Motorcraft® Yellow Concentrated
Antifreeze/Coolant
All Markets Except
Canada
CVC-13-G
As Needed
Motorcraft® Yellow Concentrated
Antifreeze/Coolant
Canada Only
Parts - Parts To Inspect And Replace Only If Necessary
Service Part
Number
Claim Quantity
Package Order
Quantity
Description
ML3Z-6C535-A
Only If Necessary (Up To 8), 4
per side
VCT Seal
ML3Z-6C535-B
Only If Necessary (Up To 8), 4
per side
JL3Z-9439-A
Only If Necessary (Up To 8)
Intake Manifold Gasket
W718564-S450
Only If Necessary (Up To 2)
High Pressure Fuel Pump Mounting
Studs
Claim Quantity refers to the total number of individual pieces required to repair the vehicle. This may differ from the
number of service part number packages due to the unit of issue (UOI).
As Needed indicates the part is necessary but amount of the part may vary and/or is not a whole number. Parts can
be billed out as non-whole numbers, including less than 1.
Only If Necessary indicates the part is not mandatory. Refer to the Service Procedure to determine the
inspection/inclusion criteria.
Warranty Status: Warranty coverage limits and policies are not altered by a TSB. Warranty coverage limits are
determined by the identified causal part.
Labor Times
Operation
No.
Description
Time
2025 F-150 5.0L: Retrieve DTCs, Replace Right Oil Feed Tube, Includes To Remove And
Install Valve Cover (Can be claimed with D)
262093A
3.6
Hrs
2025 F-150 5.0L: Retrieve DTCs, Replace Left Oil Feed Tube, Includes To Remove And
Install Valve Cover (Can be claimed with D)
262093B
1.3
Hrs
2025 F-150 5.0L: Retrieve DTCs, Replace Both Right And Left Oil Feed Tubes, Includes To
Remove And Install Valve Covers (Can be claimed with D)
262093C
4.6
Hrs
262093D
0.4
Hrs
Additional Time If Equipped With Dual Generators (Can be claimed with A or B or C)
Repair/Claim Coding
Causal Part:
6K602
Condition Code: 17
Service Procedure
1. For DTCs P3402 and/or P3426, replace the right side cylinder deactivation solenoid oil feed tube.
1. Remove the right valve cover. Refer to the WSM, Section 303-01D > Removal and Installation >
Valve Cover RH > Removal > Steps 1-13.
2. Remove and replace the right cylinder deactivation solenoid oil feed tube. Refer to the WSM, Section
303-01D > Removal and Installation > Camshaft RH > Removal > Steps 1-13.
3. Install the right valve cover. Refer to the WSM, Section 303-01D > Removal and Installation > Valve
Cover RH > Installation > Steps 1-12.
2. For DTCs P3442 and/or P3450, replace the left side cylinder deactivation solenoid oil feed tube.
1. Remove the left valve cover. Refer to the WSM, Section 303-01D > Removal and Installation > Valve
Cover LH > Removal > Steps 1-11 for single generator or 1-14 for dual generator equipped vehicles.
2. Remove and replace the left cylinder deactivation solenoid oil feed tube. Refer to the WSM, Section
303-01D > Removal and Installation > Camshaft LH > Removal > Step 2 only.
3. Install the left valve cover. Refer to the WSM, Section 303-01D > Removal and Installation > Valve
Cover LH > Installation > Steps 1-12 for single generator or 1-14 for dual generator equipped vehicles.
© 2026 Ford Motor Company
All rights reserved.
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and
equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information
that could assist in proper vehicle service. The procedures should not be performed by "do-it-yourselfers". Do not assume that a condition
described affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy
and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article.
The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supersede
this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.
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TSB/Document ID: TSB 26-2093
Replacement Service Bulletin Number:
MFR Communication Date: 2026-03-10
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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