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TECHNICAL SERVICE BULLETIN 23-2425
3.5L PowerBoost - Illuminated Malfunction Indicator Lamp (MIL) With DTC — 1 December
P0420 And/Or P0430 Stored In The PCM
This bulletin supersedes 23-2337.
Model:
Ford Engine: 3.5L PowerBoost
2022-2023 F-150
Summary
This article supersedes TSB 23-2337 to update the Service Procedure and the causal part.
Issue: Some 2022-2023 F-150 hybrid vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated
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 reprogram the
PCM and remove sulfur from the catalytic converters.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:
* 2022-2023 F-150
+ 3.5L PowerBoost engine
* DTCs P0420 and/or P0430 stored in the PCM
Parts
Service Part ‘ anti Piece
W705443- | If Needed + 4
ML3Z-5C226- | If Needed 1 41 1 Required Per
A Exhaust System Gasket Catalytic Converter
Replaced
W520114- | If Needed | Transmission Support Crossmember 4 4
$442 Nuts
W714418- | If Needed | Transmission Support Crossmember 4 4
$439 Bolts
W709771- | If Needed wei 1 2
a
W711140- | If Needed | Transmission Support Insulator Bolts 4 3 Rear Wheel Drive
$901 (RWD only) (RWD) Only
W718926-_ | If Needed | Transmission Support Insulator Bolts 4 4 Four Wheel Drive
$900 (4WD only) (4WD) Only
ML3Z-6775-K | If Needed | Self-adhesive Heat Shield Material 1 fo1 [
XL-2 AS Motorcraft® High Temperature Nickel
needed |Anti-Seize Lubricant

XL-1 As Motorcraft® Penetrating and Lock
Needed | Lubricant
VC-13-G As Motorcraft® Yellow Concentrated
Needed |Antifreeze/Coolant (All Markets Except
Canada)
CVC-13-G As Motorcraft® Yellow Concentrated
Needed | 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.

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 ‘
2022-2023 F-150 3.5L PowerBoost: Diagnose And Repair Following The Service MT232425 Actual
Procedure Time

Repair/Claim Coding

Causal Part: RECALEM
Condition Code:

Service Procedure

NOTE: Perform the sulfur removal procedure one time only. If the vehicle exhibits this condition again,

proceed with the replacement of the catalytic converter(s).

1. Perform Pinpoint Test HF: Catalyst Efficiency Monitor And Exhaust Systems Steps HF1-HF6. Refer to the
Workshop Manual (WSM), Section 309-00D Exhaust System - 3.5L V6 PowerBoost (CN), Diagnosis and Testing,
Catalyst System.

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. Reprogram the PCM using the latest software level of the FDRS diagnostic scan tool. Follow all on-screen
instructions carefully to complete all coordinated module software updates.

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.

5. 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 70 mph (113 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). Place the transmission into manual (M).
(5). Select 4th gear.
(6). For at least 45 minutes, perform periodic, repeated medium (25%-50% throttle) acceleration / closed pedal
(foot off throttle) deceleration events driving alternately between 60 mph and 70 mph (97 km/h and 113 km/h).
6. Take the transmission out of manual mode (M). Drive the vehicle normally at 55-65 mph (88-105 km/h) for 15
minutes.
7. Clear DTCs P0420 and/or P0430 stored in the PCM. This resets the mode 6 data to zero.
8. Run a catalyst monitor drive cycle. Refer to Pinpoint Test HF: Catalyst Efficiency Monitor And Exhaust Systems
Step HF11 > On Board Diagnostics (OBD) Drive Cycle.
9. 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 0.3 on affected bank(s)?
(1). Yes - repair is complete.
(2). No - replace the catalytic converter(s) on the affected bank(s) that has a value greater than 0.3. 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.