# Service bulletin SSM 52314

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10251934
- Published by NHTSA: 2024\-03\-20
- Manufacturer's number: SSM 52314
- Manufacturer's date: 2024\-03\-01
- NHTSA component: POWER TRAIN

## NHTSA's summary

During service and repair requiring removal and replacement of a crankshaft bolt and/or crankshaft damper, achieving proper torque of the crankshaft pulley bolt is critical. Incorrect torque may allow the bolt to loosen resulting in the timing gear breaking and engine damage. Replacement of the bolt is critical to the repair and accurately following the installation procedure in the Workshop Manual \(WSM\) Section, 303\-01 is extremely important. The bolt torque procedure can be found in the crankshaft front seal removal and installation procedure or in the engine assembly procedure.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10251934-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10251934-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2021 to 2024 FORD BRONCO
- 2021 to 2024 FORD BRONCO SPORT
- 2020 to 2023 FORD E\-150
- 2016 to 2017 FORD E\-250
- 2020 to 2023 FORD E\-250
- 2015 to 2024 FORD E\-350
- 2015 to 2024 FORD E\-450
- 2017 FORD E\-550
- 2018 to 2022 FORD ECOSPORT
- 2015 to 2024 FORD EDGE
- 2020 to 2024 FORD ESCAPE
- 2015 to 2024 FORD EXPEDITION
- 2015 to 2024 FORD EXPLORER
- 2015 to 2019 FORD EXPLORER POLICE INTERCEPT
- 2015 to 2024 FORD F\-150
- 2017 to 2024 FORD F\-250 SD
- 2017 to 2024 FORD F\-350 SD
- 2017 to 2024 FORD F\-450 SD
- 2017 to 2024 FORD F\-550 SD
- 2019 FORD F\-600 SD
- 2020 to 2024 FORD F\-600 SD
- 2024 FORD F\-650 INCOMPLETE CHASSIS
- 2017 to 2023 FORD F\-650 SD
- 2017 to 2024 FORD F\-750 SD
- 2015 to 2019 FORD FLEX
- 2017 to 2019 FORD FUSION
- 2017 to 2019 FORD FUSION ENERGI
- 2017 to 2019 FORD FUSION HYBRID
- 2017 to 2022 FORD GT
- 2022 to 2024 FORD MAVERICK
- 2015 to 2024 FORD MUSTANG
- 2015 to 2019 FORD POLICE INTERCEPTOR SEDAN
- 2015 to 2019 FORD TAURUS
- 2015 to 2024 FORD TRANSIT
- 2020 to 2024 LINCOLN AVIATOR
- 2017 to 2020 LINCOLN CONTINENTAL
- 2021 to 2024 LINCOLN CORSAIR
- 2015 to 2016 LINCOLN MKS
- 2015 to 2019 LINCOLN MKT
- 2007 LINCOLN MKX
- 2016 to 2018 LINCOLN MKX
- 2019 to 2020 LINCOLN MKX
- 2015 to 2020 LINCOLN MKZ
- 2015 to 2020 LINCOLN MKZ HYBRID
- 2019 to 2024 LINCOLN NAUTILUS
- 2015 to 2024 LINCOLN NAVIGATOR
- 2017 MOBILITY SPECIALISTS FORD E\-150
- 2015 MOBILITY SPECIALISTS FORD E\-250

## Recalls for the same vehicles and component

- [2026311](/recalls/tc/2026311.md), 2026-06-24: Powertrain
- [26V402000](/recalls/nhtsa/26V402000.md), 2026-06-24: POWER TRAIN:AUTOMATIC TRANSMISSION
- [2026280](/recalls/tc/2026280.md), 2026-06-09: Powertrain
- [26V375000](/recalls/nhtsa/26V375000.md), 2026-06-09: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)
- [26V371000](/recalls/nhtsa/26V371000.md), 2026-06-09: POWER TRAIN:AUTOMATIC TRANSMISSION
- [2026189](/recalls/tc/2026189.md), 2026-04-15: Powertrain
- [2026188](/recalls/tc/2026188.md), 2026-04-15: Powertrain
- [26V237000](/recalls/nhtsa/26V237000.md), 2026-04-14: POWER TRAIN:AUTOMATIC TRANSMISSION
- [26V236000](/recalls/nhtsa/26V236000.md), 2026-04-14: POWER TRAIN:AUTOMATIC TRANSMISSION
- [2025707](/recalls/tc/2025707.md), 2025-12-18: Powertrain

## Other bulletins for the same vehicles and component

- [TSB 26\-2375 v2](/bulletins/11038441.md), 2026-10-13, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM; POWER TRAIN. NOTE: This bulletin has been updated, refer to the change log at the bottom for details. Issue: Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: • Poor shift quality • Illuminated powertrain malfunction \(wrench\) indicator with DTCs P2704 and P0771 stored in the PCM / TCM . This may be due to a calibration in the TCM and/or wear between the input shaft and the E clutch hub causing theinput shaft O\-rings to become damaged resulting in an open E clutch circuit. Action: For vehicles that meet all of the criteria in the Issue and Model statements, follow the Service Procedure toreprogram the PCM / TCM and/or replace the E clutch hub and input shaft O\-rings
- [SSM 55221](/bulletins/11038438.md), 2026-10-12, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN; ELECTRICAL SYSTEM. For 20222026 vehicles equipped with a 8F35 transmission, a revision to the Road Testing Vehicle procedure has been made in the WSM, Section 307\-01 \> Diagnosis and Testing. This updated procedure improves the diagnosis of customer reported transmission concerns and aids in locating the proper root cause. During diagnosis and testing, details regarding whether the condition is more prevalent when the vehicle is hot or cold, throttle percentage at the time of occurrence, vehicle speed, the specific shift involved, and whether the issue occurs during transmission engagements \(N\>R, N\>D, R\>D, and/or D\>R\) should be noted in the warranty claim. Engineering requests including these detailed operating conditions that will significantly assist with root cause analysis. Diagnosis, testing, and repair should use established labor times outside this article.
- [SSM 55218](/bulletins/11038166.md), 2026-10-06, Service bulletin: POWER TRAIN; UNKNOWN OR OTHER. For 20202026 vehicles equipped with the 10R140 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford Diagnosis and Repair System \(FDRS\). This test utilizes the pressure and vacuum transducer \(PVT\) when available. Workshop Manual \(WSM\) updates related to this diagnostic procedure are planned for release in Q4 2026. The new test improves the accuracy of detecting leaks within transmission fluid circuits and replaces the previous air check method. The previous air check procedure has been shown to produce a high rate of false positives, which may lead to unnecessary repairs when no actual leak is present. Accordingly, the air check procedure is not to be used for diagnosing internal transmission hydraulic leaks or as justification for transmission replacement.
- [TSB 26\-2088 v2](/bulletins/11037979.md), 2026-10-05, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN. This bulletin supersedes 24\-2249. Reason for update: update the claim quantity of the torque converter nuts, part number and claim quantity of the front support assembly bolt washers, and part number change of the fluid pan from the Parts List. Reissued 01\-Oct\-2026 \- Added LC3Z\-7G091\-B to the part list
- [25E10\-S1](/bulletins/11037788.md), 2026-10-02, Other: ELECTRICAL SYSTEM; UNKNOWN OR OTHER; POWER TRAIN. 25E10\-S1 Owner letter
- [TSB 26\-2428](/bulletins/11037776.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; UNKNOWN OR OTHER; POWER TRAIN. This bulletin supersedes 25\-2326. Reason for update: update the service procedure to include the fuel tank isolation valve replacement, update the causal part number, and increase the labor time allowance to include the fuel tank isolation valve replacement. Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble code \(DTC\) P2450 stored in the powertrain control module \(PCM\). This may be due to the software in the PCM and/or the fuel tank isolation valve.
- [TSB 26\-2428](/bulletins/11037775.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; POWER TRAIN; UNKNOWN OR OTHER. This bulletin supersedes 25\-2326. Reason for update: update the service procedure to include the fuel tank isolation valve replacement, update the causal part number, and increase the labor time allowance to include the fuel tank isolation valve replacement. Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp \(MIL\) with diagnostic trouble code \(DTC\) P2450 stored in the powertrain control module \(PCM\). This may be due to the software in the PCM and/or the fuel tank isolation valve.
- [TSB 26\-2341 v2](/bulletins/11037661.md), 2026-10-01, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN. This bulletin supersedes 26\-2171. Reasons for update: update the Parts list to add a note to clarify the application of the part numbers W520102\-S442 and 4S4Z\-3N324\-AA "FWD Only". Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Shudder condition, most noticeable at speeds below 60 mph \(100 km/h\) No relevant diagnostic trouble codes \(DTC\) present Traceable shudder event with IDS/FDRS reading \*\(Figure 1\)\* This condition may be perceived/felt as an engine misfire. This may be due to a concern with the output planetary assembly.
- [TSB 26\-2408](/bulletins/11037559.md), 2026-09-30, Service bulletin: POWER TRAIN. This bulletin supersedes 26\-2309. Reason For Update: update the Model section to remove Aviator 10R80, update the Parts list to add 3.3L to W520514\-S440, and add L1MZ\-7Z490\-G valve body separator plate for Aviator. Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: \* Harsh 3\-4, 4\-5 upshifts \* Harsh 5\-3, 4\-3 downshifts \* Harsh reverse engagements These symptoms may be worse when cold. This may be due to the F clutch friction plates brinelling into the clutch and planetary container cylinder \(7B177\).
- [PCM\-26.10.3 Bronco](/bulletins/11037417.md), 2026-09-21, Over\-the\-air update: POWER TRAIN; ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM; UNKNOWN OR OTHER. 25S75 Recall remedy \-Powertrain Control Module update to introduce logic to prevent low pressure fuel pump binding and maintain fuel flow to the engine.

JSON: [/v1/bulletins/10251934](/v1/bulletins/10251934)

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