Loading...

NHTSA ID Number: 10177121

Manufacturer Communication Number: TSB 20-2166

TSB/Document Date: 2020-07-08


Summary

Some 2018-2019 Expedition/Navigator vehicles built on or before 8-Apr-2019 equipped with a 3.5L EcoBoosteBay logo engine may exhibit a ticking/tapping or rattle type noise from the top front cover area of the engine on initial start-up after a cold soak of 6 hours or more that may last for 2-5 seconds. This may be due to a worn variable cam timing (VCT) unit. To correct the condition, follow the Service Procedure steps to replace the VCT units and update the powertrain control module (PCM) calibration with revised VCT parameters.


Page 1 of 3

202166

TECHNICAL SERVICE BULLETIN
Cold Start Ticking/Tapping Or Rattle Type Noise - Built On Or
Before 8-Apr-2019

04 June
2020

Model:
FordeBay logo
2018-2019 Expedition
LincolneBay logo
2018-2019 Navigator
Issue: Some 2018-2019 Expedition/Navigator vehicles built on or before 8-Apr-2019 may exhibit a
ticking/tapping or rattle type noise from the top front cover area of the engine on initial start-up after a cold
soak of 6 hours or more that may last for 2-5 seconds. This may be due to a worn variable cam timing
(VCT) unit. To correct the condition, follow the Service Procedure steps to replace the VCT units and
update the powertrain control module (PCM) calibration with revised VCT parameters.
Action: Follow the Service Procedure steps to correct the condition on vehicles that meet all of the
following criteria:
• 2018-2019 Expedition/Navigator
• Built on or before 8-Apr-2019
• Customer symptom of ticking/tapping or rattle noise from the front cover area after a cold
start
NOTE: Part quantity refers to the number of that service part number required, which may be
different than the number of individual pieces. Service part numbers contain 1 piece unless
otherwise stated. "As Needed" indicates the part is required but the number may vary or is not a
whole number; parts can be billed out as non-whole numbers, including less than 1. "If Needed"
indicates the part is not mandatory.
Parts
Part Number
HL3Z-6256CD

Description
Package Contains 1
Piece, 2 Pieces Required

HL3Z-6C525Package Contains 1
CD
Piece, 2 Pieces Required

Intake VCT Unit
Exhaust VCT Unit

HL3Z-6279-A

Package Contains 1
Piece, 4 Pieces Required

HL3Z9H486-A

Package Contains 6
Pieces, 6 Pieces
Required

Upper Intake Manifold Gaskets

HL3Z-9439-A

Package Contains 3
Pieces, 6 Pieces
Required

Camshaft Cover To Intake Gasket

VCT Unit Bolt

Quantity
2
2
4
1

2

HL3Z-6584-B

-

Left Valve Cover Gasket

1

HL3Z-6584-A

-

Right Valve Cover Gasket

1

https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB20-2166/US/E... 7/7/2020

Page 2 of 3

W503275S437

Package Contains 4
Pieces, 1 Piece Required

High Pressure Fuel Tube Retaining Bolt

W503280S437

Package Contains 4
Pieces, 1 Piece Required

HL3Z9J323-C

-

W714498S900

Package Contains 4
Pieces, 2 Pieces
Required

AA5Z9E583-A

-

HL3Z-8507-A

-

BR3Z8527-A

-

HL3Z6A340-A

-

XW4Z-6700AA

-

BR3Z6020-A

-

BR3Z6C535-A

-

AA5Z-6714-A

-

Oil Filter

TA-357

-

Motorcraft® High Performance Engine RTV
Silicone

As
Needed

ZC-30-A

-

Motorcraft® Gasket Remover

As
Needed

ZC-31-B

-

Motorcraft® Metal Surface Prep Wipes

As
Needed

VC-3-B

-

Motorcraft® Orange Antifreeze/Coolant
Concentrated (All Markets Except Canada)

As
Needed

CVC-3-B2

-

Motorcraft® Orange Antifreeze/Coolant
Concentrated (Canada Only)

As
Needed

VC-13-G

-

Motorcraft® Yellow Antifreeze/Coolant
Concentrated (All Markets Except Canada)

As
Needed

CVC-13-G

-

Motorcraft® Yellow Antifreeze/Coolant
Concentrated (Canada Only)

As
Needed

XO-5W30Q1SP

-

Motorcraft® SAE 5W-30 Premium Synthetic
Blend Motor Oil (All Markets Except Canada)

As
Needed

CXO-5W30LSP6

-

Motorcraft® SAE 5W-30 Super Premium Motor
Oil (Canada Only)

As
Needed

High Pressure Fuel Tube Retaining Bolt
High Pressure Pump to Rail Tube

1
1
1
1

High Pressure Pump Mounting Bolt

High Pressure Pump O-ring
Coolant Pump Gasket
Coolant Pump O-ring
Crankshaft Pulley Shaft Bolt
Front Crankshaft Seal
Front Cover Coolant Pipe Seal
Oil Pump Electrical Connector Seal

1
1
1
1
1
1
1
1

Inspect And Replace As Necessary
BR3Z6C535-A

-

BR3Z6C535-B

-

VCT Oil Control Seal
Spark Plug Tube Seal

If Needed
If Needed

https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB20-2166/US/E... 7/7/2020

Page 3 of 3

HL3Z-9417-A

-

High Pressure Pump Mounting Plate Seal

If Needed

BL3Z-9374-A

-

High Pressure Pump Mounting Plate O-ring

If Needed

HL3Z-8507-D

-

Thermostat Housing O-ring

If Needed

HL3Z-8527-A

-

Thermostat Housing O-ring

If Needed

HL3Z-8590-A

-

Water Pump Outlet O-ring

If Needed

Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Emissions
Warranty/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP)
coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/Emissions
Warranty/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified using
the OASIS part coverage tool.
Labor Times
Operation
No.

Description

Time

2018-2019 Expedition: Replace All 4 VCT Units And Reprogram The PCM (Do
Not Use With Any Other Labor Operations)

202166A

10.4
Hrs.

2018-2019 Navigator: Replace All 4 VCT Units And Reprogram The PCM (Do
Not Use With Any Other Labor Operations)

202166B

10.5
Hrs.

Repair/Claim Coding
Causal Part:

6256

Condition Code: 42

Service Procedure
1. Replace all 4 VCT units. Refer to Workshop Manual (WSM), Section 303-01. Do not replace any
additional VCT or engine timing related components not included in the Parts List.
2. Reprogram the PCM using the latest software level of the appropriate FordeBay logo scan tool.
NOTE: Advise the customer this vehicle is equipped with an adaptive transmission shift strategy
which allows the vehicle's computer to learn the transmission's unique parameters and improve
shift quality. When the adaptive strategy is reset, the computer will begin a relearning process.
This relearning process may result in firmer than normal upshifts and downshifts for several days.

© 2020 FordeBay logo 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 FordeBay logo or LincolneBay logo 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. FordeBay logo Motor Company reserves the right to supersede this information with updates. The most recent
information is available through FordeBay logo Motor Company's on-line technical resources.

https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB20-2166/US/E... 7/7/2020

1

SaleBestseller No. 1
TOPDON RLink J2534 Pass-Thru Programmer, OEM Reprogramming and Diagnostic Tool, Enhanced J2534 VCI, Supports J2534/D-PDU/CAN-FD/DoIP, Compatible with 18+ Vehicle Brands, No OE Software Provided
289 Reviews
TOPDON RLink J2534 Pass-Thru Programmer, OEM Reprogramming and Diagnostic Tool, Enhanced J2534 VCI, Supports J2534/D-PDU/CAN-FD/DoIP, Compatible with 18+ Vehicle Brands, No OE Software Provided
  • J2534 Pass-Thru Programmer: TOPDON RLink J2534 is an...
  • All-in-One OEM Diagnostics: This J2534 ECU programming tool...
  • Proven Performance You Can Trust: Backed by over 10000 real...
  • Integrated Excellence, Always Up-to-Date: Featuring the...
  • Efficiency Meets Versatility: Engineered to support three...
SaleBestseller No. 2
TOPDON RLink J2534 Reprogramming Tool, High-Speed J2534 Pass-Thru Programmer, OEM Reprogramming and Diagnostic Tool, Supports J2534/D-PDU/CAN-FD/DoIP, 17+ Vehicle Brands Supported
  • Advanced VCI Box, Industry-leading J2534 Pass-Thru...
  • High-Speed OEM-Level Diagnostics & Programming: Unlock true...
  • Coverage for 17 Car Brands & Ultra Reliability: Works...
  • User-Friendly RLink Platform & Expert Support: TOPDON’s...
  • 6.6 ft USB-C Cable & Portable Storage Case: The RLink J...

Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API


 


If the PDF is very large, it may not load in the preview below.

Download PDF [116.37 KB]


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)


Search NHTSA Database for Recalls

View Latest Recalls


Search NHTSA Database for Vehicle Investigations

View Latest Vehicle Investigations


Search NHTSA Database for Vehicle Complaints

View Latest Vehicle Complaints


TSB/Document ID: TSB 20-2166

Replacement Service Bulletin Number:

MFR Communication Date: 2020-06-05

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: POWER TRAIN

MFR Component System:

MFR Component Subsystem:


Previous TSB

Next TSB



THINKCAR Bidirectional OBD2 Scanner Diagnostic Tool 689BT - All System Scan Tool with Bluetooth 5.0, 3000+ Active Tests,ECU Coding, 34+ Services, FCA, CAN-FD and DoIP, Wireless Update
108 Reviews
THINKCAR Bidirectional OBD2 Scanner Diagnostic Tool 689BT - All System Scan Tool with Bluetooth 5.0, 3000+ Active Tests,ECU Coding, 34+ Services, FCA, CAN-FD and DoIP, Wireless Update
  • [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
  • Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
  • Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
  • 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
  • Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABSeBay logo, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.

Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API


 

Sale
XTOOL D7S Bidirectional Scan Tool, 2026 AI-Assisted OBD2 Scanner Diagnostic Tool with FCA AutoAuth, All System Car Scanner, 39+ Resets, ECU C0ding, PMI, Upgrade of D7, Crankshaft Relearn, CAN FD/DoIP
334 Reviews
XTOOL D7S Bidirectional Scan Tool, 2026 AI-Assisted OBD2 Scanner Diagnostic Tool with FCA AutoAuth, All System Car Scanner, 39+ Resets, ECU C0ding, PMI, Upgrade of D7, Crankshaft Relearn, CAN FD/DoIP
  • Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCAeBay logo Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations
  • 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCAeBay logo AutoAuth: Now supports FCAeBay logo SGW module for ChryslereBay logo, for JeepeBay logo, for DodgeeBay logo (2018+), for FiateBay logo (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for FordeBay logo, for LincolneBay logo, and for MazdaeBay logo ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
  • 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABSeBay logo Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABSeBay logo Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
  • Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMWeBay logo, for Benz and offline for BENZ, for MIT, along with PMI functions for FordeBay logo, for MazdaeBay logo, and for LincolneBay logo. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
  • OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently

Last update on 2026-06-30 / Affiliate links / Images from Amazon Product Advertising API


 

2026 BOSSCOMM IF745 Scanner Diagnostic Tool, Check Engine Code Reader with 6 Resets, ABS Bleeder/Oil/EPB/SAS/Throttle/Battery, Scanner Diagnostic Tool for Vehicles, Lifetime Free Update, Auto VIN
  • 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABSeBay logo/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABSeBay logo/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
  • 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
  • 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
  • 【✨6 Essential Resets: ABSeBay logo Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.​
  • 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.

Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API


 


This product presentation was made with AAWP plugin.

Share to...