&
TECHNICAL SERVICE BULLETIN 23-2058
icki i 21 March
3.0L EcoBoost or 3.0L PHEV - Cold Start Ticking/Tapping Or Rattle Type en
Noise
This bulletin supersedes 22-2377. Reason for update: add 2023 model year vehicles, revised part list
Model:
Ford Engine: 3.0L EcoBoost
2020-2023 Explorer
LincoIn Engine: 3.0L EcoBoost
2020-2023 Aviator Engine: 3.0L PHEV
Markets: North American markets only
Summary
Issue: Some 2020-2023 Explorer vehicles equipped with a 3.0L EcoBoost engine or 2020-2023 Aviator vehicles
equipped with a 3.0L EcoBoost or 3.0L PHEV 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 VCT unit. To correct the condition, follow the Service Procedure to replace the VCT units.
NOTE: Dealers should only order parts for customer vehicles that require repairs. Because of part
constraints, dealers may experience situational short-term backorders on some parts. Customers should
continue to drive vehicles while parts are on order.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:
* One of the following vehicles:
- 2020-2023 Explorer with 3.0L EcoBoost engine
- 2020-2023 Aviator with 3.0L EcoBoost or PHEY engine
* Customer symptom of ticking/tapping or rattle noise from the front cover area after a cold start
Parts - Required For All Vehicles
Service Part |Claim Gackage Number in Description
Number Quantity Quantity Package
LIMZ-6256-C VCT Unit - Intake
Ds7z- 1 1 1 jl “
K2GZ-9440-A Engine Front Cover Gasket #1
FT4Z-6020-J Engine Front Cover Gasket #2
L4MZ-6020-B Engine Front Cover Gasket #3
w7e0gs- Front Cover Bolt With Stud - Lower Left

FT4Z-6840-C Stem-To-Oil Drain Port Seal
FTAZENG52- Oil Pump Return Tube O-ring Seals
FTAZENGS2- Turbocharger Oil Return Tube O-ring Seal
FTAZ-ENG52- Turbocharger Oil Return Tube-To-Engine Block Gasket
JT4Z-6020-A Coolant Pump Gasket
JT4Z-6584-B Valve Cover Gasket
JT4Z-6584-D Valve Cover Gasket
JTAZBCOBS- Turbocharger Oil Supply Tube Filter
JTAZ-GN652- Turbocharger Oil Supply O-ring Seal
JTAZ-ENGS2- Turbocharger Oil Supply O-ring Seal
JTAZ-OESBS- High Pressure Fuel Pump O-ring Seal
KU2Z-6731-A Oil Filter Element
L1MZ-6584-A Valve Cover Gasket, Left
L1MZ-6584-B Valve Cover Gasket, Right
LIMZ-6584-C Valve Cover Rocker Arm Gasket
L1MZ-9448-A Turbocharger Gasket
wee r ps { tf 4 Lower Strut-to-Wheel Knuckle Nuts (AWD)
ae Cable Assembly Bolts (10R60 Transmission)

wore Lower Strut-to-Wheel Knuckle Bolts (AWD)
Won s ps { tf 4 Middle and Front Subframe Bolts
woot ps | 2 f 4 | Transfer Case Flange Bolts (4WD)
wees Transmission Support Insulator Bolts
XW4Z-6700-B Front Main Oil Seal
FL3z-9439-A| 6 | 1 [| 6 _ [Intake Manifold Gaskets
XL-5-A As Needed} As Needed | Motorcraft® Multi-Purpose Grease Spray
XO-5W30- |As Needed} As Needed Motorcraft® SAE 5W-30 Synthetic Blend Motor Oil (All
QsP Markets Except Canada)
CXO-5W30- |As Needed| As Needed Motorcraft® SAE 5W-30 Super Premium Motor Oil
LSP6 (Canada Only)
XT-12-QULV |As Needed| As Needed | | Motorcraft® MERCON® ULV Automatic Transmission
Fluid
ZC-30-A |As Needed} As Needed | Motorcraft® Gasket Remover
ZC-31-B As Needed} As Needed | Motorcraft® Metal Surface Prep Wipes
ZC-37-A |AsNeeded| As Needed | Motorcraft® Wheel and Tire Cleaner
PM-4-A As Needed| As Needed Motorcraft® Metal Brake Parts Cleaner (Compliant With
Low Volatile Organic Compound Requirements As
Required In Some USA States)
PM-4-B As Needed| As Needed Motorcraft® Metal Brake Parts Cleaner (Not Compliant
With Volatile Organic Compound Requirements)
TA-357 As Needed| As Needed | Motorcraft® High Performance Engine RTV Silicone
ZC-20 As Needed} As Needed | Motorcraft® Engine Shampoo and Degreaser
YN-35 [AsNeeded| AsNeeded | ————_[ Motorcraft® R-1234yf Refrigerant PAG Oil
Parts - Aviator Required Parts

Service Part Claim Package Order |Number in D ipti
Number Quantity Quantity Package escription
w7ii3i0-s44o[ 2 | 14 [Lower Arm Bracket Nut (RWD)
w7i9s03-s439[ 2 | 1 4 [Lower Arm Bracket Bolt (RWD)
w71e375-s900[ 8 =| = 2)Ssi«dTs SS I Transfer Case Mounting Bolts
XG-11 As Needed As Needed Motorcraft® High Temperature 4X4 Front Axle
and Wheel Bearing Grease
XL-2 As Needed As Needed Motorcraft® High Temperature Nickel Anti-
Seize Lubricant (Hybrid)
XY-75W140-QL | As Needed As Needed Motorcraft® SAE 75W-140 Synthetic Rear
Axle Lubricant
Parts - Explorer Required Parts
Service Part Claim Package Order Number in aati,
W710726-S442 2 Cable Assembly Bolts (10R80.
Transmission)
wri7s2-s440 [2 [| 2st [Engine Mount Nuts, Left and Right
Parts - Parts To Inspect And Replace Only If Necessary (Explorer/Aviator)
Service Part | Claim Package Order |Number in anti
FT4Z-6A832-C | If Needed (1 If Needed Oil Filter Housing
Possible)
FT4Z-8C387-A | If peeced a1 If Needed Air Cleaner Outlet Pipe O-ring Seal
ossible)
L1MZ-8527-A | If Needed (1 If Needed i .
W719698-S900 If Needed (4 If Needed Catalytic Converter Stud
‘ossible)
BR3Z-6C535-B | If Needed (6 If Needed Spark Plug Seals
Possible)
7T4Z-6379-AA | If Needed (8 If Needed Turbocharger Studs
ossible)
W719485-S450 If Needed (2 If Needed 4 Fuel Pump Studs
‘ossible)
KX6Z-9C587-A | If Needed (1 If Needed "
VC-13-G If Needed If Needed Motorcraft® Yellow Concentrated
Antifreeze/Coolant (All Markets Except
Canada)

CVC-13-G If Needed If Needed Motorcraft® Yellow Concentrated
Antifreeze/Coolant (Canada Only)
If Needed If Needed ; Motorcraft® Premium Cooling System Flush
YN-23 If Needed If Needed | Motorcraft® A/C System Flushing Solvent
Claim Quantity refers to the total number of individual pieces required to repair the vehicle.
Package Order Quantity refers to the amount of the service part number package(s) required to repair the vehicle.
Number In Package refers to the number of individual pieces included in a service part number package.
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
a Operation .
Description N Time
lo.
2020-2023 Explorer RWD 3.0L EcoBoost: Replace All 4 VCT Units (Can Be Claimed With 232058A 21.6
Operation F Or G) Hrs.
2020-2023 Explorer 4WD 3.0L EcoBoost: Replace All 4 VCT Units (Can Be Claimed With 232058B 23.4
Operation F Or G) Hrs.
2020-2023 Aviator RWD 3.0L EcoBoost: Replace All 4 VCT Units (Can Be Claimed With 232058C 22.4
Operation F Or G) Hrs.
2020-2023 Aviator AWD 3.0L EcoBoost: Replace All 4 VCT Units (Can Be Claimed With 232058D 23.7
Operation F Or G) Hrs.
2020-2023 Aviator AWD 3.0L PHEV: Replace All 4 VCT Units (Can Be Claimed With 232058E 25.5
Operation F Or G) Hrs.
Additional Time To Check And Correct Caster/Camber And Front Toe (Can Be Claimed With 232058F 1.1
Operation A, B, C, D Or E) Hrs,
Additional Time To Check And Correct Caster/Camber And Front Toe For Vehicles With 232058G 1.3
Lane Departure (Can Be Claimed With Operation A, B, C, D Or E) Hrs.
Repair/Claim Coding
Causal Part: 6C525
Condition Code:
Service Procedure
1. Replace all 4 VCT units. Refer to 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 sensors.
(2). All the VCT solenoid and spark plug tube seals require inspection, but not all require replacement.
© 2024 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.