22-2260

TECHNICAL SERVICE BULLETIN
Illuminated MIL With DTC P0420 And/Or P0430

23 January
2023

This bulletin supersedes 22-2137.
Model:
Ford
2020-2021 Expedition
2018-2020 F-150

Engine: 2.7L EcoBoost

Lincoln
2020-2021 Navigator
Summary
This article supersedes TSB 22-2137 to update the Parts List and Service Procedure.
Issue: Some 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost and 2020-2021 Expedition/Navigator
vehicles may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0420
and/or P0430 stored in the powertrain control module (PCM). This may be due to high sulfur content in the fuel. To
correct the condition, follow the Service Procedure to de-sulfate the catalytic converters.
Action: Follow the service procedure to correct the condition on vehicles that meet all of the following criteria:
• One of the following vehicles
- 2018-2020 F-150 equipped with 2.7L engine
- 2020-2021 Expedition/Navigator
• Illuminated MIL with DTCs P0420 and/or P0430 stored in the PCM
Parts
All Vehicles
Service Part
Number

Quantity Description

Unit of
Issue

Piece
Quantity

W520514-S440

1

Catalytic Converter Nuts

4

4

W520114-S442

1

Transmission Support Crossmember Nuts

4

4

W714418-S439

1

Transmission Support Crossmember Bolts

4

4

W709771-S440

2

Transmission Mount Nuts

1

2

W711140-S901

3

Transmission Support Insulator Bolts (Rear Wheel
Drive Only)

1

3

W718353-S900

1

Transmission Support Insulator Bolts (4x4/All-Wheel
Drive Only)

4

4

Parts
Expedition/Navigator Parts
Service Part Number Quantity Description

Unit of Issue Piece Quantity

JL7Z-5E212-R

1

Left Catalytic Converter Assembly

1

1

JL7Z-5E212-U

1

Right Catalytic Converter Assembly (Navigator)

1

1

JL1Z-5E212-G

1

Right Catalytic Converter Assembly (Expedition)

1

1

W715131-S437

1

Transmission Fluid Cooler Tube Bolts

4

2

Parts
F-150 Parts
Service Part Number Quantity Description

Unit of Issue Piece Quantity

W715131-S442

1

Transmission Fluid Cooler Tube Bolts

4

2

FL3Z-5C226-A

2

Catalytic Converter Gasket

1

2

JL3Z-5E212-C

1

Left Catalytic Converter Assembly

1

1

JL3Z-5E212-K

1

Right Catalytic Converter Assembly

1

1

FL3Z-6775-D

1

Self-Adhesive Heat Shield Material

1

1

Parts
Parts To Inspect And Replace Only If Necessary
Service Part
Number

Quantity Description

Unit of
Issue

Piece
Quantity

LX6Z-7D285-A

If
Transmission Fluid Band Seal
Needed

1

2

5L7Z-7J324-A

If
Transmission Fluid Backing Ring
Needed

2

2

XT-12-QULV
VC-13-G
CVC-13-G

If
Motorcraft® MERCON® ULV Automatic Transmission Fluid
Needed
If
Motorcraft® Yellow Concentrated Antifreeze/Coolant (All
Needed Markets Except Canada)
If
Motorcraft® Yellow Concentrated Antifreeze/Coolant (Canada
Needed Only)

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 nonwhole 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
Operation
Time
No.

Description
2018-2020 F-150 Equipped With 2.7L, 2020-2021 Expedition/Navigator: Diagnose And
Repair Following The Service Procedure

MT222260

Actual
Time

Repair/Claim Coding
Causal Part:

5E212

Condition Code: 55

Service Procedure
NOTE: Perform the de-sulfate procedure one time only. If the vehicle exhibit this condition again, proceed
with the replacement of the catalytic converter(s).
1. Perform pinpoint tests steps HF1-HF6.

(1). For 2018-2020 vehicles, refer to the Powertrain Control/Emissions Diagnosis (PC/ED) Manual.
(2). For 2021 vehicles, refer to Workshop Manual (WSM) Section 309-00 > Diagnosis and Testing > PC/ED
Pinpoint Test HF.
2. Is the concern still present?
(1). Yes - proceed to Step 3.
(2). No - this article does not apply.
3. Retrieve onboard diagnostics (OBD) Mode 6 Data from the Ford Diagnosis and Repair System (FDRS) and record
oxygen storage values from both banks.
4. Perform the following sulfur removal cycle.
(1). Warm up the engine to its normal operating temperature.
(2). Identify an appropriate route to allow speeds around 65 mph (105 km/h).
(3). From 30 mph (48 km/h) or slower, accelerate at wide open throttle (WOT) until the vehicle reaches 65 mph
(105 km/h).
(4). Perform periodic light acceleration/deceleration events for 5 minutes, driving alternately between 50 mph and
65 mph (80 km/h and 105 km/h).
(5). Reduce speed to under 30 mph (48 km/h).
(6). Repeat the WOT with periodic acceleration/deceleration events 3-4 times.
(7). Park the vehicle and let the engine idle for 1 hour.
5. Clear DTCs P0420 and/or P0430 stored in the PCM. This resets the Mode 6 data to zero.
6. Drive the vehicle at 55-65 mph (88-105 km/h) for 15 minutes.
7. Run a catalyst monitor drive cycle. Refer to pinpoint test HF11 > On Board Diagnostics (OBD) Drive Cycle.
8. Retrieve OBD Mode 6 Data after the catalyst oxygen storage values have been populated. Have the oxygen
storage values decreased from what was recorded in Step 3 and are they less than 0.5 on either bank?
(1). Yes - repair is complete.
(2). No - replace the catalytic converter(s) on the affected bank(s). Refer to the WSM, Section 309-00 > Exhaust
System > Removal and Installation > Catalytic Converter.

© 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 to supersede
this information with updates. The most recent information is available through Ford Motor Company's on-line technical resources.