NHTSA ID Number: 10236037
Manufacturer Communication Number: TSB 23-2143
Summary
Some 2017-2020 F-150 and 2018-2020 Expedition/Navigator vehicles built on or before 30-Nov-2019 and equipped with a 3.5L EcoBoost 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. Some vehicles may also exhibit an intermittent condition with no auto restart during auto-start-stop operation with or without diagnostic trouble code (DTC) P164C present in the powertrain control module (PCM). This may be due to a worn variable camshaft timing (VCT) unit. To correct the condition, follow the Service Procedure to replace the VCT units.
This bulletin supersedes 22-2200.
Model:
Ford
2018-2020 Expedition |
Built on or before 30-Nov-2019
|
| 2017-2020 F-150 |
Built on or before 30-Nov-2019
|
| Lincoln
2018-2020 Navigator |
Built on or before 30-Nov-2019
|
Summary
This article supersedes TSB 22-2200 to update the production fix date, Action statement and customer symptom.
NOTE: Certain parts may now be reused for this repair. Refer to the Service Procedure for details.
Issue: Some 2017-2020 F-150 and 2018-2020 Expedition/Navigator vehicles built on or before 30-Nov-2019 and equipped with a 3.5L EcoBoost 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. Some vehicles may also exhibit an intermittent condition with no auto restart during auto-start-stop operation with or without diagnostic trouble code (DTC) P164C present in the powertrain control module (PCM). This may be due to a worn variable camshaft timing (VCT) unit. To correct the condition, follow the Service Procedure to replace the VCT units.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:
- One of the following vehicle lines:
- 2017-2020 F-150
- 2018-2020 Expedition/Navigator
- Built on or before 30-Nov-2019
- 3.5L EcoBoost engine
- Customer symptom of ticking/tapping or rattle noise from the front cover area after a cold start
NOTE: Dealers should only order parts for customer vehicles that require repairs. Because of parts constraints, dealers may experience situational short-term backorders on some parts. Customers should continue to drive the vehicle while parts are on order.
Parts
| Service Part Number | Quantity | Description | Unit of Issue | Piece Quantity | Note |
| HL3Z-6256-CD | 2 | Intake VCT Unit | 1 | 2 | |
| HL3Z-6C525-CD | 2 | Exhaust VCT Unit | 1 | 2 | |
| HL3Z-6279-A | 4 | VCT Unit Bolt | 1 | 4 | |
| ML3Z-6584-G | 1 | Left Valve Cover Gasket | 1 | 1 | |
| HL3Z-6584-A | 1 | Right Valve Cover Gasket | 1 | 1 | |
| W503275-S437 | 1 | High Pressure Fuel Tube Retaining Bolt | 4 | 1 | |
| W503280-S437
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | 1 | High Pressure Fuel Tube Retaining Bolt | 4 | 1 | |
| W714498-S900 | 1 | High Pressure Pump Mounting Bolt | 4 | 2 | |
AA5Z-9E583-A
Ford AA5Z-9E583-A, Fuel Pump Gasket
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | 1 | High Pressure Pump O-ring | 1 | 1 | |
| HL3Z-8507-A | 1 | Coolant Pump Gasket | 1 | 1 | |
BR3Z-8527-A
Ford Seal
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | 1 | Coolant Pump O-ring | 1 | 1 | |
| HL3Z-6A340-A | 1 | Crankshaft Pulley Shaft Bolt | 1 | 1 | |
XW4Z-6700-AA
Ford XW4Z-6700-AA Seal ASY - Cran
Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API | 1 | Front Crankshaft Seal | 1 | 1 | |
BR3Z-6020-A
Ford Error:#N/A
Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API | 1 | Front Cover Coolant Pipe Seal | 1 | 1 | |
BR3Z-6C535-A
Genuine Engine Valve Cover Washer Seal BR3Z-6C535-A
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | 1 | Oil Pump Electrical Connector Seal | 1 | 1 | Oil Pump Electrical Connector Seal and VCT Oil Control Seal are the same service part number |
AA5Z-6714-A
Genuine Ford Parts AA5Z-6714-A Oil Filter
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | 1 | Oil Filter | 1 | 1 | |
TA-357
SEALANT - SILICONE
Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API | As Needed | Motorcraft® High Performance Engine RTV Silicone | |||
ZC-30-A
Genuine Ford Fluid ZC-30 Silicone Gasket Remover - 12 oz.
Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API | As Needed | Motorcraft® Silicone Gasket Remover | |||
ZC-31-B
Motorcraft - Towelette-Metal C (ZC31B)
Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API | As Needed | Motorcraft® Metal Surface Cleaner | |||
VC-13-G
Ford Genuine Fluid VC-13-G Yellow Concentrated Antifreeze/Coolant - 1 Gallon
Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API | As Needed | Motorcraft® Yellow Antifreeze/Coolant Concentrated (All Markets Except Canada) | |||
| CVC-13-G | As Needed | Motorcraft® Yellow Antifreeze/Coolant Concentrated (Canada Only) | |||
| XO-5W30-Q1SP | As Needed | Motorcraft® SAE 5W-30 Premium Synthetic Blend Motor Oil (All Markets Except Canada) | |||
| CXO-5W30-LSP6 | As Needed | Motorcraft® SAE 5W-30 Super Premium Motor Oil (Canada Only) | |||
| ZC-20 | As Needed | Motorcraft® Engine Shampoo and Degreaser | |||
| PM-4-A
Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API | As Needed | Motorcraft® Metal Brake Parts Cleaner (Compliant With Low Volatile Organic Compound Requirements As Required In Some USA States) | |||
PM-4-B
Motorcraft #PM4B Brake Cleaner (PM4B)
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API | As Needed | Motorcraft® Metal Brake Parts Cleaner (Not Compliant With Volatile Organic Compound Requirements) |
Parts
Parts To Inspect And Replace Only If Necessary
| Service Part Number | Quantity | Description | Unit of Issue | Note |
| HL3Z-9439-C | If Needed | Valve Cover Intake Port Gasket | 3 | |
| HL3Z-9H486-A | If Needed | Upper Intake Manifold Gaskets | 6 | |
| BR3Z-6C535-A
Genuine Engine Valve Cover Washer Seal BR3Z-6C535-A
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | If Needed | VCT Oil Control Seal | 1 | Oil Pump Electrical Connector Seal and VCT Oil Control Seal are the same service part number |
BR3Z-6C535-B
Ford BR3Z-6C535-B - Seal - Valve
Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API | If Needed | Spark Plug Tube Seal | 1 | |
| HL3Z-9417-A | If Needed | High Pressure Pump Mounting Plate Seal | 1 | |
| BL3Z-9374-A No products found. | If Needed | High Pressure Pump Mounting Plate O-ring | 1 | |
| HL3Z-8507-D | If Needed | Thermostat Housing O-ring | 1 | |
| HL3Z-8527-B | If Needed | Thermostat Housing O-ring | 1 | |
| HL3Z-8590-A | If Needed | Water Pump Outlet O-ring | 1 | |
| HL3Z-9J323-C | If Needed | High Pressure Pump to Rail Tube | 1 |
Quantity refers to the amount of the service part number required to repair the vehicle.
Unit of Issue refers to the number of individual pieces included in a service part number package.
Piece Quantity refers to the total number of individual pieces required to repair the vehicle.
As Needed indicates the 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.
If Needed indicates the part is not mandatory.
Service Procedure
NOTE: The following parts may be reused for this repair if no damage is present.
- Upper intake manifold gaskets (HL3Z-9H486-A)
- Valve cover intake port gaskets (HL3Z-9439-C)
- High pressure fuel tube (HL3Z-9J323-C) may be reused for this repair, if it has not been previously reused. Tighten the high-pressure fuel pump to fuel rail high-pressure fuel tube flare nuts to 32 Nm +/-2 Nm when reusing the fuel tube for this TSB.
- VCT solenoid seals (BR3Z-6C535-A) and spark plug tube seals (BR3Z-6C535-B) should continue to be reused if no damage is present.
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.
(1). It is not necessary to remove the 2 left valve cover camshaft position (CMP) sensors.
(2). All the VCT solenoid and spark plug tube seals require inspection, but not all require replacement.
10 Affected Products
Vehicles
1 Associated Document
Manufacturer Communications
23-2143
04 May 2023
MC-10236037-0001.pdf 195.209KB
NHTSA ID Number: 10212106
Manufacturer Communication Number: TSB 22-2200
Summary
Some 2017-2020 F-150 2018-2020 Expedition/Navigator vehicles built on or before 31-Oct-2019 and equipped with a 3.5L EcoBoost 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.
1 Associated Document
Manufacturer Communications
22-2200
20 May 2022
NHTSA ID Number: 10191176
Manufacturer Communication Number: TSB 21-2119
Summary
Some 2017-2020 F-150 2018-2020 Expedition/Navigator vehicles built on or before 31-Oct-2019 and equipped with a 3.5L EcoBoost 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.
1 Associated Document
Manufacturer Communications
21-2119
14 April 2021
NHTSA ID Number: 10180531
Manufacturer Communication Number: TSB 20-2315
Summary
Some 2017-2020 F-150 2018-2020 Expedition/Navigator vehicles built on or before 31-Oct-2019 and equipped with a 3.5L EcoBoost 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.
1 Associated Document
Manufacturer Communications
20-2315
14 September 2020
NHTSA ID Number: 10176838
Manufacturer Communication Number: TSB 20-2191
Summary
Some 2017-2018 F-150 vehicles built on or before 10-Jul-2018 and equipped with a 3.5L EcoBoost 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.
1 Associated Document
Manufacturer Communications
20-2191
04 June 2020
Reprogramming
Service Information & Reprogramming
Module Reprogramming
| Diagnostic Software | Interface Device | Complete Vehicle Diagnostics | Module Programming | ||
| 1996-2017 Model Year |
2018-Present Model Year |
1996-2017 Model Year |
2018-Present Model Year |
||
| IDS/FDRS | VCM, VCM II, VCMM |
X | X | X | X |
| FJDS/FDRS | Compatible J2534 Devices (Including VCM II and VCMM) |
X | X | X | |
Detailed system requirements, installation, and support information for each product is located under the diagnostics tool support tab for each product.
Integrated Diagnostic Software (IDS) / Ford Diagnosis & Repair System (FDRS)
For use with VCM I, VCM II, VMM and VCMM hardware devices only. The complete factory Ford Motor Company vehicle diagnostic tool that provides complete dealership level vehicle diagnostic coverage for all 1996 to present Ford, Lincoln and Mercury vehicles. The IDS software includes time based access to the IDS software, software updates and calibration files.
Ford J2534 Diagnostic Software (FJDS) / Ford Diagnosis & Repair System (FDRS)
For use with compatible J2534 hardware devices. FJDS software provides Ford Module Programming functionality that covers 1996 to present Ford, Lincoln and Mercury module reprogramming functions, plus complete dealership level vehicle diagnostic software for all 2018 to present Ford and Lincoln vehicles. The FJDS software license includes time based access to the FJDS software, software updates and calibration files.
Latest Calibration Information
Module Build Data (As-Built)
Use VIN to obtain As-Built data
www.motorcraftservice.com
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SEOCONTENT-START
5/9/23, 7:24 AM https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB23-2143/US/EN/~UEmployee/defaul t.aspx?VIN=&versi… https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB23-2143/US/EN/~UEmployee/defaul t.aspx?VIN=&version=4.0&environme… 1/4 TECHNICAL SERVICE BULLETIN 3.5L EcoBoost – Cold Start Ticking/Tapping/Rattle With Possible No Restart During Auto-Start-Stop Operation 23-2143 04 May 2023 This bulletin supersedes 22-2200. Model: Ford 2018-2020 Expedition 2017-2020 F-150 Lincoln 2018-2020 Navigator Built on or before 30-Nov-2019 Engine: 3.5L EcoBoost Built on or before 30-Nov-2019 Built on or before 30-Nov-2019 Summary This article supersedes TSB 22-2200 to update the production fix date, Action statement and customer symptom. NOTE: Certain parts may now be reused for this repair. Refer to the Service Procedure for details. Issue: Some 2017-2020 F-150 and 2018-2020 Expedition/Navigator vehicles built on or before 30-Nov-2019 and equipped with a 3.5L EcoBoost 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. Some vehicles may also exhibit an intermittent condition with no auto restart during auto-start-stop operation with or without diagnostic trouble code (DTC) P164C present in the powertrain control module (PCM). This may be due to a worn variable camshaft timing (VCT) unit. To correct the condition, follow the Service Procedure to replace the VCT units. Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria: • One of the following vehicle lines: – 2017-2020 F-150 – 2018-2020 Expedition/Navigator • Built on or before 30-Nov-2019 • 3.5L EcoBoost engine • Customer symptom of ticking/tapping or rattle noise from the front cover area after a cold start NOTE: Dealers should only order parts for customer vehicles that require repairs. Because of parts constraints, dealers may experience situational short-term backorders on some parts. Customers should continue to drive the vehicle while parts are on order. Parts Service Part Number HL3Z-6256- CD HL3Z- 6C525-CD HL3Z-6279- A ML3Z-6584- G HL3Z-6584- Quantity 2 2 4 1 1 Description Intake VCT Unit Exhaust VCT Unit VCT Unit Bolt Left Valve Cover Gasket Right Valve Cover Gasket Unit of Issue 1 1 1 1 1 Piece Quantity 2 2 4 1 1 Note 5/9/23, 7:24 AM https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB23-2143/US/EN/~UEmployee/defaul t.aspx?VIN=&versi… A W503275- S437 W503280- S437 W714498- S900 AA5Z- 9E583-A HL3Z-8507- A BR3Z-8527- A HL3Z- 6A340-A XW4Z- 6700-AA BR3Z-6020- A BR3Z- 6C535-A AA5Z-6714- A TA-357 ZC-30-A ZC-31-B VC-13-G CVC-13-G XO-5W30- Q1SP CXO-5W30- LSP6 ZC-20 PM-4-A PM-4-B 1 1 1 1 1 1 1 1 1 1 1 As Needed As Needed As Needed As Needed As Needed As Needed As Needed As Needed As Needed As Needed High Pressure Fuel Tube Retaining Bolt 4 High Pressure Fuel Tube Retaining Bolt 4 High Pressure Pump Mounting Bolt 4 High Pressure Pump O-ring 1 Coolant Pump Gasket 1 Coolant Pump O-ring 1 Crankshaft Pulley Shaft Bolt 1 Front Crankshaft Seal 1 Front Cover Coolant Pipe Seal 1 1 Oil Pump Electrical Connector Seal Oil Filter 1 Motorcraft® High Performance Engine RTV Silicone Motorcraft® Silicone Gasket Remover Motorcraft® Metal Surface Cleaner Motorcraft® Yellow Antifreeze/Coolant Concentrated (All Markets Except Canada) Motorcraft® Yellow Antifreeze/Coolant Concentrated (Canada Only) Motorcraft® SAE 5W-30 Premium Synthetic Blend Motor Oil (All Markets Except Canada) Motorcraft® SAE 5W-30 Super Premium Motor Oil (Canada Only) Motorcraft® Engine Shampoo and Degreaser Motorcraft® Metal Brake Parts Cleaner (Compliant With Low Volatile Organic Compound Requirements As Required In Some USA States) Motorcraft® Metal Brake Parts Cleaner (Not Compliant With Volatile Organic Compound Requirements) 1 1 2 1 1 1 1 1 1 1 Oil Pump Electrical Connector Seal and VCT Oil Control Seal are the same service part number 1 Parts Parts To Inspect And Replace Only If Necessary https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB23-2143/US/EN/~UEmployee/defaul t.aspx?VIN=&version=4.0&environme… 2/4 5/9/23, 7:24 AM https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB23-2143/US/EN/~UEmployee/defaul t.aspx?VIN=&versi… Service Part Number HL3Z-9439-C HL3Z-9H486- A BR3Z-6C535- A BR3Z-6C535- B HL3Z-9417-A BL3Z-9374-A HL3Z-8507-D HL3Z-8527-B HL3Z-8590-A HL3Z-9J323-C Quantity If Needed If Needed If Needed If Needed If Needed If Needed If Needed If Needed If Needed If Needed Description Valve Cover Intake Port Gasket Upper Intake Manifold Gaskets VCT Oil Control Seal Spark Plug Tube Seal High Pressure Pump Mounting Plate Seal High Pressure Pump Mounting Plate O-ring Thermostat Housing O- ring Thermostat Housing O- ring Water Pump Outlet O-ring High Pressure Pump to Rail Tube Unit of Issue 3 6 1 1 1 1 1 1 1 1 Note Oil Pump Electrical Connector Seal and VCT Oil Control Seal are the same service part number Quantity refers to the amount of the service part number required to repair the vehicle. Unit of Issue refers to the number of individual pieces included in a service part number package. Piece Quantity refers to the total number of individual pieces required to repair the vehicle. As Needed indicates the 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. If Needed indicates the part is not mandatory. 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 Description 2017-2020 F-150 3.5L EcoBoost: Replace All Four (4) VCT Units (Do Not Use With Any Other Labor Operations) 2017-2020 F-150 Raptor 3.5L EcoBoost: Replace All Four (4) VCT Units (Do Not Use With Any Other Labor Operations) 2018-2020 Expedition: Replace All Four (4) VCT Units (Do Not Use With Any Other Labor Operations) 2018-2020 Navigator: Replace All Four (4) VCT Units (Do Not Use With Any Other Labor Operations) Operation No. 232143A 232143B 232143C 232143D Time 9.6 Hrs. 9.7 Hrs. 9.8 Hrs. 9.8 Hrs. Repair/Claim Coding Causal Part: 6256 Condition Code: 42 Service Procedure https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB23-2143/US/EN/~UEmployee/defaul t.aspx?VIN=&version=4.0&environme… 3/4 5/9/23, 7:24 AM https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB23-2143/US/EN/~UEmployee/defaul t.aspx?VIN=&versi… https://www.fordservicecontent.com/Ford_Content/vdirsnet/TSB/EU/~WTSB23-2143/US/EN/~UEmployee/defaul t.aspx?VIN=&version=4.0&environme… 4/4 NOTE: The following parts may be reused for this repair if no damage is present. • Upper intake manifold gaskets (HL3Z-9H486-A) • Valve cover intake port gaskets (HL3Z-9439-C) • High pressure fuel tube (HL3Z-9J323-C) may be reused for this repair, if it has not been previously reused. Tighten the high-pressure fuel pump to fuel rail high-pressure fuel tube flare nuts to 32 Nm +/-2 Nm when reusing the fuel tube for this TSB. • VCT solenoid seals (BR3Z-6C535-A) and spark plug tube seals (BR3Z-6C535-B) should continue to be reused if no damage is present. 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. (1). It is not necessary to remove the 2 left valve cover camshaft position (CMP) sensors. (2). All the VCT solenoid and spark plug tube seals require inspection, but not all require replacement. © 2023 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 de this information with updates. The most recent information is available through Ford Motor Company’s on-line technical resources.
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