NHTSA ID Number: 10189762
Manufacturer Communication Number: 21N03
TSB/Document Date: 2021-04-03
Summary
Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine Cam Phaser Replacement In some of the affected vehicles, an undesirable noise may develop from the cam phasers in the 3.5L GTDI engine. This noise might occur as a rattle when starting the engine after the vehicle was turned off for an extended period of time or as a knocking noise when the engine is idling after it is warmed up. A cam phaser that has developed an undesirable noise does not affect the vehicle safety, performance, or emissions
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
- MaxLife Technology prevents engine breakdown with 40% better...
- Includes seal conditioners to reduce oil consumption and oil...
- Added detergents reduce sludge, corrosion, rust and deposits...
- Advanced friction-fighting additives help maximize...
- Meets or exceeds all requirements of ILSAC GF-6A, API SP...
This product presentation was made with AAWP plugin.
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: 21N03
Replacement Service Bulletin Number:
MFR Communication Date: 2021-03-02
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
David J. Johnson
Director
Service Engineering Operations
Ford
Customer Service Division
Ford
Motor Company
P. O. Box 1904
Dearborn, Michigan 48121
March 2, 2021
TO:
All U.S. Ford
and Lincoln
Dealers
SUBJECT:
Customer Satisfaction Program 21N03
Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine
Cam Phaser Replacement
PROGRAM TERMS
This program extends the warranty coverage of the engine cam phasers until September 1, 2022
provided the Repair Order (RO) date of Powertrain Control Module reflash under Customer
Satisfaction Program 21B10 occurs on or before August 31, 2021.
Ford
will cover the repair or refund costs following the proration table below using the mileage shown
on the RO.
Ford
Vehicles
Mileage
Ford
Will Cover
Up to 69,999
100%
70,000 – 79,999
66%
80,000 – 89,999
33%
90,000 or higher
0%
This is a one-time repair program.
Coverage is automatically transferred to subsequent owners.
VEHICLES COVERED BY THIS PROGRAM
Vehicle
Model Year
Assembly Plant
F-150*
Build Dates
Dearborn
March 10, 2016 through November 30, 2019
Kansas
April 15, 2016 through November 30, 2019
2017-2020
Note: This program does NOT include the F-150 Raptor/Limited variants.
Affected vehicles are identified in OASIS.
REASON FOR PROVIDING EXTENDED WARRANTY COVERAGE
In some of the affected vehicles, an undesirable noise may develop from the cam phasers in the 3.5L
GTDI engine. This noise might occur as a rattle when starting the engine after the vehicle was turned
off for an extended period of time or as a knocking noise when the engine is idling after it is warmed
up.
A cam phaser that has developed an undesirable noise does not affect the vehicle safet y,
performance, or emissions.
© Copyright 2021 Ford
Motor Company
SERVICE ACTION
If an affected vehicle exhibits this condition, dealers are to replace all four cam phasers. This service
will be covered by Ford
Motor Company following the proration table contained within the term and
conditions.
OWNER NOTIFICATION MAILING SCHEDULE
Owner Letters are expected to be mailed the week of March 15, 2021. Dealers should repair any
affected vehicles that experience undesirable cam phaser noise after field service action 21B10,
whether or not the customer has received a letter.
ATTACHMENTS
Attachment I:
Administrative Information
Attachment II:
Labor Allowances and Parts Ordering Information
Attachment III:
Technical Information
Owner Notification Letters
QUESTIONS & ASSISTANCE
For questions and assistance, contact the Special Service Support Center (SSSC) via the SSSC Web
Contact Site. The SSSC Web Contact Site can be accessed through the Professional Technician
Society (PTS) website using the SSSC link listed at the bottom of the OASIS VIN report screen or
listed under the SSSC tab.
Sincerely,
David J. Johnson
© Copyright 2021 Ford
Motor Company
ATTACHMENT I
Page 1 of 4
Customer Satisfaction Program 21N03
Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine
Cam Phaser Replacement
OASIS ACTIVATION
OASIS will be activated on March 2, 2021. Vehicles will not show FSA 21N03 until FSA 21B10 has
been completed and processed.
FSA VIN LISTS ACTIVATION
FSA VIN Lists will not be activated for this service action.
SOLD VEHICLES
• Only owners with affected vehicles that exhibit the covered condition will be directed to dealers
for repairs.
• Dealers are to prioritize repairs of customer vehicles over repairs of new and used vehicle
inventory.
STOCK VEHICLES
• Do not perform this program unless the affected vehicle exhibits the covered condition.
TITLE BRANDED / SALVAGED VEHICLES
Vehicles with cancelled warranties are not eligible for this service action.
OWNER REFUNDS
• Ford
Motor Company is offering a refund for owner-paid repairs covered by this program if the
repair was performed before the date of the Owner Notification Letter. This refund offer expires
September 1, 2021.
• Dealers are also pre-approved to refund owner-paid emergency repairs that were performed
away from an authorized servicing dealer after the date of the Owner Notification Letter. Noncovered repairs, or those judged by Ford
to be excessive, will not be reimbursed.
•
•
Refunds will only be provided for the cost associated with cam phaser replacement due to
unacceptable noise.
To ensure that the correct proration is applied follow the directions in the Refund Claiming
section.
RENTAL VEHICLES
Dealers are pre-approved for up to 1 day for a rental vehicle. Follow Extended Service Plan (ESP)
guidelines for dollar amounts. Rentals will only be reimbursed for the day(s) the vehicle is at the
dealership for part replacement. Prior approval for more than 1 rental day is required from the SSSC
via the SSSC Web Contact Site.
© Copyright 2021 Ford
Motor Company
ATTACHMENT I
Page 2 of 4
Customer Satisfaction Program 21N03
Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine
Cam Phaser Replacement
ADDITIONAL REPAIR (LABOR TIME AND/OR PARTS)
Additional repairs identified as necessary to complete the FSA should be managed as follows:
• For related damage and access time requirements, refer to the Warranty and Policy Manual –
Section 6 – Ford
& Lincoln
Program Policies / General Information & Special Circumstances
for FSA’s / Related Damage.
• For vehicles within new vehicle bumper-to-bumper warranty coverage, no SSSC approval is
required, although related damage must be on a separate repair line with the Related Damage
radio button checked.
o Ford
vehicles – 3 years or 36,000 miles
o Lincoln
vehicles – 4 years or 50,000 miles
• For vehicles outside new vehicle bumper-to-bumper warranty coverage, submit an Approval
Request to the SSSC Web Contact Site prior to completing the repair.
CLAIMS PREPARATION AND SUBMISSION
• Claim Entry: Enter claims using Dealer Management System (DMS) or One Warranty
Solution (OWS) online.
o When entering claims:
▪ Claim type 31: Field Service Action. The FSA number 21N03 is the sub code.
▪ Customer Concern Code (CCC): N09
▪ Condition Code (CC): 42
▪ Causal Part Number: 6256
▪ Part Quantity: 0
o For additional claims preparation and submission information, refer to the Recall and
Customer Satisfaction Program (CSP) Repairs in the OWS User Guide.
• Related Damage/Additional labor and/or parts: Must be claimed as Related Damage on a
separate repair line from the FSA with same claim type and sub code as described in Claim
Entry above.
• IMPORTANT: Click the Related Damage Indicator radio button.
•
Rentals: For rental vehicle claiming, follow Extended Service Plan (ESP) guidelines for dollar
amounts. Enter the total amount of the rental expense under Miscellaneous Expense code
RENTAL.
© Copyright 2021 Ford
Motor Company
ATTACHMENT I
Page 3 of 4
Customer Satisfaction Program 21N03
Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine
Cam Phaser Replacement
•
Refunds: Submit each unique refund on a separate repair order.
- Program Code: 21N03
- Misc. Expense: ADMIN
- Misc. Expense: REFUND
- Misc. Expense: 0.2 Hrs.
o To ensure that the correct proration is applied. OWS will automatically do the prorate
calculations. See below.
▪ Step 1 – Claim Repair Order write up in dealer DMS
▪
•
•
Open separate RO from 21B10 in the dealer DMS
NO OTHER REPAIR LINES ALLOWED
•
•
Check that original repair receipt provided matches vehicle owner
Check original repair mileage qualifies for the prorate.
•
•
•
Use the CURRENT DATE and MILEAGE on this Repair Order
Customer Concern field. Enter (Requests Refund for Program 21N03)
Tech comment section- Provide Date of Repair, Mileage, Full Dollar
Amount of Original Repair
•
•
Refund amount is only for the CAM PHASER repairs.
Do a misc. expense at ZERO dollars.
• Close RO – Ensure REFUND is at zero dollars
• Do NOT submit via DMS
Step 2 – Claim submittal into OWS
• MANUALLY ENTER THIS CLAIM
• Enter the DATE and MILEAGE FROM THE ORIGINAL REPAIR
RECEIPT
• Enter the CURRENT RO NUMBER
• Submit for the FULL amount of the refund. OWS will AUTOMATICALLY
prorate the refund for you based on the original mileage from the
customer repair invoice provided to you.
•
•
PRE-VALIDATE and SUBMIT
When claim pays perform necessary accounting adjustments depending
on your DMS.
•
Provide customer with refund check
© Copyright 2021 Ford
Motor Company
ATTACHMENT I
Page 4 of 4
Customer Satisfaction Program 21N03
Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine
Cam Phaser Replacement
o
Proration Table
Ford
Vehicles
Mileage
Ford
Will Cover
Up to 69,999
70,000 – 79,999
80,000 – 89,999
90,000 or higher
100%
66%
33%
0%
© Copyright 2021 Ford
Motor Company
ATTACHMENT II
Page 1 of 3
Customer Satisfaction Program 21N03
Certain 2017-2020 Model Year F-150 Equipped with a 3.5L GTDI Engine
Cam Phaser Replacement
LABOR ALLOWANCES
Description
Replace all four (4) VCT units – F-150 (excluding Raptor)
Labor Operation
Labor Time
21N03B
9.5 Hours
PARTS REQUIREMENTS / ORDERING INFORMATION
Order
Quantity
Claim
Quantity
Intake VCT Unit - Package Contains 1 Piece, 2 Pieces
Required
2
2
HL3Z-6C525-CD
Exhaust VCT Unit - Package Contains 1 Piece, 2
Pieces Required
2
2
HL3Z-6279-A
VCT Unit Bolt Package Contains 1 Piece, 4 Pieces
Required
4
4
ML3Z-6584-G
Left Valve Cover Gasket
1
1
- 🎉[OTOFIX D1 Lite, Perfect Cost-effective Diagnostic Tool]: OTOFIX D1 Lite, a newest bidirectional scan tool from OTOFIX company, is a great choice for DIYers and repair shops. 👉This obd2 scanner diagnostic tool packs all practical functions: OE level all systems diagnoses, Bi-Directional Control, 38+ reset services fixing 99% of common problems, support DoIP & CANDF protocols and FCA
AutoAuth, high-end hardware configuration. Worldwide vehicles and 🔥2 Years Free Updating🔥 covered. - 🎉[Bi-Directional Scan Tool, Active Test]: OTOFIX D1 Lite bluetooth obd2 scanner can also command ECUs and monitor the operation of the actuators to track down the problems of certain parts, like windows, sunroof, wipers, fuel pumps, etc., saving repair time & trouble. This makes OTOFIX D1 Lite the most cost-effective bidirectional scan tool.
- 🎉[2026 Newest, 38+ Hot Reset Functions]: Equipped with 38+ reset functions in one, the OTOFIX D1 lite automotive scanner diagnostic tool allows you to troubleshoot 99% of common vehicle problems. You can use this car diagnostic scanner holding enough functions to easily repair common vehicle models in your repair shops. Including Oil Reset, Injector Coding, Throttle, DPF Reset, SCR Reset, Gear Learning, Clutch Learning, Suspension, etc. Note* Reset functions vary by model.
- 🎉[OE Level Full Systems Diagnostics]: Unlike the 2-system and 4-system diagnostic tools, the OTOFIX auto scan tool can complete comprehensive system diagnostics within 5 minutes. It accesses and scans all available onboard systems like for Engine /AT /ABS /EPB /BMS /TPMS /SRS /SAS /Audio System /BCM /Air Conditioning / etc., to read & clear codes, view live data, and check ECU information. Note: Active test is not involved.
- 🎉[Powerful Hardware Configuration]: Designed with a fashion appearance & a 7” touchscreen and a weight of 463g, this OTOFIX D1 Lite OBD2 diagnostic scanner scan tool is convenient for everywhere and easy to use & store. Android9.0 OS and 2+64GB memory enhance multi-task smoothness and diagnostic operation, no more wasting too much time. 5800mAh battery allows hours-lasting use. WiFi & VCI1 also bring faster communication for your diagnostics.
- 🏆【2026 TOP OBD2 Scanner Diagnostic Tool】OTOFIX D1 Lite wireless obd2 scanner has upgraded hardware configuration and car coverage. The newly upgraded D1 Lite with 🔥OS Android 9.0🔥1.5Ghz 4 core high efficiency processor🔥2GB RAM
+64GB ROM large storage🔥5800mAh large battery, more stable and longer lasting diagnostics🔥 38+ Reset🔥action tests🔥full system diagnostic🔥Supports MV105 endoscope🔥21+ Language Supports🔥100000+ vehicle coverage to meet all your daily maintenance needs. - 👍【Bi-Directional Control / Active Test】D1 Lite obd2 scanner has bidirectional control(worth $300+), which is the most beloved feature among mechanic. If your headlights or car windows are broken, going to a repair shop will cost a lot of money. You can use D1 Lite to send execution commands to the ECU module and identify the repair status. Such as ABS, car windows, doors, valves, wipers, headlights, etc., effectively shorten diagnostic time and reduce diagnostic costs.
- 🔥【All Systems Diagnostics, In-depth Checking】This advanced OBD2 Scanner D1 Lite can perform OE-level diagnosis of all systems including engine, transmission, airbag, ABS, ESP, TPMS, gateway, steering, radio, and air conditioning for more than 100 brands. This diagnostic scanner supports essential functions, such as reading ECU version info, reading and clearing fault codes, and reading data streams.With just a simple click, it provides you with accurate and in-depth diagnostics.
- 🏆【38+ Reset Hot Functions】For repair workshops, holding an OTOFIX D1 Lite Auto scanner is a strong advantage over others. Its 38+ maintenance functions provide various solutions for all module repairs, including Oil Reset, TPMS Reset, Injector Coding, Suspension, Throttle Matching, etc., which will usher your repair business to a new pinnacle. Continuously updating will never make the functionality & compatibility out-of-date.
- 🏆【150+ Models, 10000+ Car Coverage & 16 Languages】D1 Lite is a comprehensive car diagnostic scan tool, help you to troubleshoot car issues fast for 95% US, European, Asian auto makes. ✅ With frequent updates and optimizations allow D1 Lite to cover more vehicles to meet your needs. ✅ Multilingual menu allows auto mechanics around the world to use it without language barriers. 🚩Note: Kindly send us the S/N of the device to authorize new language updates before changing the menu language.
- 【2026 OTOFIX D1 Lite Gives the Best Value for Money】OTOFIX D1 Lite bidirectional scan tool is more FASTER and SMARTER with 2026 Enhanced Hardwares & New Functions! 👍Alternative Bluetooth +USB connect 👍2G+64GB 👍4x ARM Cortex-A35 (1.5GHz) Processor (5X Faster CPU) 👍Android 9.0 OS 👍5G GHz WiFi 👍CANFD&DOIP 👍 FCA
AutoAuth 👍38+ Services 👍3K+ Bi-Directional Control 👍Full Systems Diagnose 👍2 Years Update 👍150+ Vehicle Coverage. - 👍【Active Tests】 OTOFIX D1 Lite is a bi-directional scan tool that can send commands to, and also receive information from vehicle control modules. This way, you can quickly locate and repair faulty auto parts. For Example: send direct commands to ask the vehicle to turn on/off the radiator fan, lights, sound horn, fuel pump, modulate throttle, open/close windows, operate mirrors and more. *Note that only available tests will be displayed in the menu.
- 👍【38+ Service Functions】 OTOFIX D1 Lite scan tool offers 38+ of the hottest service functions that are commonly used for car repairs. That include Oil reset/SAS/EPB/BMS/Throttle/ABS bleeding, and 2065-new SUS/ADBLUE/NOX/Headlamp resets (and more) to help restore your car status after repairs are done. Compared to other diagnostic scanners for cars, the OTOFIX D1 Lite scanner is much more fully-featured. *Note that specific functions available depend on the make/model/year of your car.
- 👍【All System Diagnostics + Cloud Report Management】 This 2026 car scanner OTOFIX D1 Lite provides troubleshooting and data for all ECUs: read/clear DTCs, view graphic live data/VIN, and locate system faults for safe driving. With Cloud Report Management, you can save detailed reports to cloud servers and easily shared them with others via QR codes/emails/text messages. Others can access these reports from any device (smartphones/tablets/PCs …) anytime, and you can better manage repair work.
- 👍【99% Car Coverage】 This one-station car scanner diagnostic for all cars works on 150+ major car brands across the world. 1) It supports CAN-FD/DoIP protocols: compatible with GMCAVALIER/TRAX/Encore/Envision/GL8(LSY)/CT4/CT5 after 2019; Volvo
after 2018; Land Rover
/Jaguar
after 2017; and BM.W F/G all chassis. 2) For models equipped with security modules (such as Renault & 2018+ FCA
SGW), its built-in AutoAuth allows you to easily break diagnostic barriers after registration.
This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API




