Illuminated MIL With DTC P0420 And/Or P0430 – 2020-2021 Ford Expedition & Lincoln Navigator & 2018-2020 F-150

NHTSA ID Number: 10230765

Manufacturer Communication Number: TSB 22-2260

Summary

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.

 


This bulletin supersedes 22-2137.

Model:

 

 

FordeBay logo

2020-2021 Expedition

2018-2020 F-150
Engine: 2.7L EcoBoost
LincolneBay logo

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 NumberQuantityDescriptionUnit of IssuePiece Quantity
W520514-S440

No products found.

1Catalytic Converter Nuts44
W520114-S442eBay logo1Transmission Support Crossmember Nuts44
W714418-S439
1Transmission Support Crossmember Bolts44
W709771-S440
Ford W709771-S440 Nut Adjust Screw
  • Genuine OEM Part: Authentic FordeBay logo replacement nut adjust screw with part number W709771-S440, engineered to meet original equipment manufacturer specifications for reliable performance and proper fit
  • Precision Threading Design: Features accurately machined threads that ensure secure fastening and smooth adjustment capabilities for optimal mechanical function in your FordeBay logo vehicle
  • Durable Metal Construction: Manufactured from high-quality metal materials designed to withstand regular use, vibration, and environmental conditions while maintaining structural integrity
  • Direct Replacement Component: Designed as an exact fit replacement part that installs seamlessly into compatible FordeBay logo vehicles without requiring modifications or additional hardware
  • Essential Adjustment Hardware: Critical fastening component that enables proper adjustment and secure positioning of connected mechanical parts, ensuring optimal system performance
2Transmission Mount Nuts12
W711140-S901eBay logo3Transmission Support Insulator Bolts (Rear Wheel Drive Only)13
W718353-S900eBay logo1Transmission Support Insulator Bolts (4×4/All-Wheel Drive Only)44

 

Parts

Expedition/Navigator Parts

Service Part NumberQuantityDescriptionUnit of IssuePiece Quantity
JL7Z-5E212-R1Left Catalytic Converter Assembly11
JL7Z-5E212-U1Right Catalytic Converter Assembly (Navigator)11
JL1Z-5E212-G1Right Catalytic Converter Assembly (Expedition)11
W715131-S437

No products found.

1Transmission Fluid Cooler Tube Bolts42

 

Parts

F-150 Parts

Service Part NumberQuantityDescriptionUnit of IssuePiece Quantity
W715131-S442eBay logo1Transmission Fluid Cooler Tube Bolts42
FL3Z-5C226-AeBay logo2Catalytic Converter Gasket12
JL3Z-5E212-C1Left Catalytic Converter Assembly11
JL3Z-5E212-K1Right Catalytic Converter Assembly11
FL3Z-6775-DeBay logo1Self-Adhesive Heat Shield Material11

 

Parts

Parts To Inspect And Replace Only If Necessary

Service Part NumberQuantityDescriptionUnit of IssuePiece Quantity
LX6Z-7D285-AIf NeededTransmission Fluid Band Seal12
5L7Z-7J324-A

No products found.

If NeededTransmission Fluid Backing Ring22
XT-12-QULV If NeededMotorcraft® MERCON® ULV Automatic Transmission Fluid
VC-13-G
Ford Genuine Fluid VC-13-G Yellow Concentrated Antifreeze/Coolant - 1 Gallon
  • Yellow-colored, longer-life, ethylene glycol-based antifreeze/coolant for use in gasoline and diesel engines
  • Provides year-round antifreeze, anti-boil and corrosion protection
  • 50/50 mixture of coolant and distilled water provides freeze protection down to -34°F (-37°C) and boiling protection up to 265°F (129°C)
  • Do not mix different colors or types of coolant in your vehicle
  • Contains a bittering agent
If NeededMotorcraft® Yellow Concentrated Antifreeze/Coolant (All Markets Except Canada)
CVC-13-GeBay logoIf NeededMotorcraft® Yellow Concentrated Antifreeze/Coolant (Canada 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 non-whole numbers, including less than 1.

If Needed indicates the part is not mandatory.

 

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.

 


7 Affected Products

Vehicles

MAKEMODELYEAR
FORDEXPEDITION2020-2021
FORDF-1502018-2020
LINCOLNeBay logoNAVIGATOR2020-2021

 


1 Associated Document

Manufacturer Communications

22-2260
23 January 2023

MC-10230765-0001.pdf 168.615KB

 


NHTSA ID Number: 10214752

Manufacturer Communication Number: TSB 22-2137

Summary

Some 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost and 2020-2021 Expedition/Navigator 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 convertors.

 

1 Associated Document

Manufacturer Communications

22-2137
20 June 2022

MC-10214752-0001.pdf 71.528KB

 


NHTSA ID Number: 10203646

Manufacturer Communication Number: TSB 21-2381

Summary

Some 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 convertors.

 

1 Associated Document

Manufacturer Communications

21-2381
18 November 2021

MC-10203646-0001.pdf 117.274KB

 


 

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