Ford bulletin SSM 52335
What it saysFor 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to Workshop Manual (WSM), Section 303-00 for oil leak inspection and testing methods. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Mar 6, 2024, received Mar 20, 2024, about the engine. It names 198 model years across Ford and Lincoln (2016–2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
One page for every brand it was filed under. Each brand’s bulletins: Ford · Lincoln.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationFor 2015-2024 Ford and Lincoln vehicles equipped with turbocharged engines and customer concern of an engine oil leak, refer to Workshop Manual (WSM), Section 303-00 for oil leak inspection and testing methods. Ford has evaluated turbochargers replaced for oil leak symptoms and although oil may collect on the external surface of a turbocharger, it is extremely rare for a turbocharger assembly to be the root cause of the oil leak. Careful inspection of the turbocharger oil feed and drain tubes should be performed along with the recommended WSM procedures as needed. Warranty claims for turbocharger replacement going forward will be assessed.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SSM 52335 | Service bulletin | Mar 6, 2024 | 10251952 | PDF, 66 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themFord 160 model years
and 86 more on this site: 2017 Ford Explorer, 2016 Ford Explorer, 2024 Ford F-150, 2023 Ford F-150, 2022 Ford F-150, 2021 Ford F-150, 2020 Ford F-150, 2019 Ford F-150, 2018 Ford F-150, 2017 Ford F-150, 2016 Ford F-150, 2024 Ford F-250 Super Duty, 2023 Ford F-250 Super Duty, 2022 Ford F-250 Super Duty, 2021 Ford F-250 Super Duty, 2020 Ford F-250 Super Duty, 2019 Ford F-250 Super Duty, 2018 Ford F-250 Super Duty, 2017 Ford F-250 Super Duty, 2024 Ford F-350 Super Duty, 2023 Ford F-350 Super Duty, 2022 Ford F-350 Super Duty, 2021 Ford F-350 Super Duty, 2020 Ford F-350 Super Duty, 2019 Ford F-350 Super Duty, 2018 Ford F-350 Super Duty, 2017 Ford F-350 Super Duty, 2024 Ford F-450 Super Duty, 2023 Ford F-450 Super Duty, 2022 Ford F-450 Super Duty, 2021 Ford F-450 Super Duty, 2020 Ford F-450 Super Duty, 2019 Ford F-450 Super Duty, 2018 Ford F-450 Super Duty, 2017 Ford F-450 Super Duty, 2019 Ford Fiesta, 2018 Ford Fiesta, 2017 Ford Fiesta, 2016 Ford Fiesta, 2018 Ford Focus, 2017 Ford Focus, 2016 Ford Focus, 2020 Ford Fusion, 2019 Ford Fusion, 2018 Ford Fusion, 2017 Ford Fusion, 2016 Ford Fusion, 2024 Ford Maverick, 2023 Ford Maverick, 2022 Ford Maverick, 2024 Ford Mustang, 2023 Ford Mustang, 2022 Ford Mustang, 2021 Ford Mustang, 2020 Ford Mustang, 2019 Ford Mustang, 2018 Ford Mustang, 2017 Ford Mustang, 2016 Ford Mustang, 2024 Ford Ranger, 2023 Ford Ranger, 2022 Ford Ranger, 2021 Ford Ranger, 2020 Ford Ranger, 2019 Ford Ranger, 2019 Ford Taurus, 2018 Ford Taurus, 2017 Ford Taurus, 2016 Ford Taurus, 2024 Ford Transit, 2023 Ford Transit, 2022 Ford Transit, 2021 Ford Transit, 2020 Ford Transit, 2019 Ford Transit, 2018 Ford Transit, 2017 Ford Transit, 2016 Ford Transit, 2023 Ford Transit Connect, 2022 Ford Transit Connect, 2021 Ford Transit Connect, 2020 Ford Transit Connect, 2019 Ford Transit Connect, 2018 Ford Transit Connect, 2017 Ford Transit Connect, 2016 Ford Transit Connect.
Also filed against model years this site has no page for: 2017 Ford F-550 SD; 2018 Ford F-550 SD; 2019 Ford F-550 SD; 2020 Ford F-550 SD; 2021 Ford F-550 SD; 2022 Ford F-550 SD; 2023 Ford F-550 SD; 2024 Ford F-550 SD; 2019 Ford F-600 SD; 2020 Ford F-600 SD; 2021 Ford F-600 SD; 2022 Ford F-600 SD; 2023 Ford F-600 SD; 2024 Ford F-600 SD; 2024 Ford F-650 Incomplete Chassis; 2017 Ford F-650 SD; 2018 Ford F-650 SD; 2019 Ford F-650 SD; 2020 Ford F-650 SD; 2021 Ford F-650 SD; 2022 Ford F-650 SD; 2023 Ford F-650 SD; 2017 Ford F-750 SD; 2018 Ford F-750 SD; 2019 Ford F-750 SD; 2020 Ford F-750 SD; 2021 Ford F-750 SD; 2022 Ford F-750 SD; 2023 Ford F-750 SD; 2024 Ford F-750 SD; 2016 Ford Police Interceptor Sedan; 2017 Ford Police Interceptor Sedan; 2018 Ford Police Interceptor Sedan; 2019 Ford Police Interceptor Sedan.
Lincoln 38 model years
and 30 more on this site: 2017 Lincoln Continental, 2024 Lincoln Corsair, 2023 Lincoln Corsair, 2022 Lincoln Corsair, 2021 Lincoln Corsair, 2020 Lincoln Corsair, 2019 Lincoln MKC, 2018 Lincoln MKC, 2017 Lincoln MKC, 2016 Lincoln MKC, 2016 Lincoln MKT, 2018 Lincoln MKX, 2017 Lincoln MKX, 2016 Lincoln MKX, 2020 Lincoln MKZ, 2019 Lincoln MKZ, 2018 Lincoln MKZ, 2017 Lincoln MKZ, 2016 Lincoln MKZ, 2024 Lincoln Nautilus, 2023 Lincoln Nautilus, 2022 Lincoln Nautilus, 2021 Lincoln Nautilus, 2020 Lincoln Nautilus, 2019 Lincoln Nautilus, 2022 Lincoln Navigator, 2021 Lincoln Navigator, 2020 Lincoln Navigator, 2019 Lincoln Navigator, 2018 Lincoln Navigator.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 164 model years this bulletin names have filed 55,260 complaints with NHTSA since 2015. 15,466 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2017 Ford Escape, the 889 owners who gave an odometer reading for Engine reported it at a median of 77,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Catalytic converter and it was confirmed by independent service center my car only has 88k miles There is a catalytic converter recall on year 2020 but Ford refuses to do a recall for the year 2021 and I have another car that have the same catalytic converter problem with only 84k miles and it’s also 2021 and Ford refuses to do any work…
2021 Ford Explorer · Engine · filed with NHTSA Jul 31, 2026 · ODI 11754102
Purchased a 2020 Explorer on feb 11, noticed smoke from the hood right when I arrived home from the dealer, contacted them and they said it might be normal for a new vehicle to have some smoke in the beginning, later I noticed that the interior heat is only blowing cold air so I was about to take it to the nearest dealer to check it out…
2020 Ford Explorer · Engine · filed with NHTSA Feb 14, 2020 · ODI 11309159
The contact owns a 2020 Ford Fusion. The contact stated that while driving at various speeds there was a humming sound coming from the front end of the vehicle. The contact stated that intermittently the vehicle hesitated to start. The tire pressure warning light illuminated; however, the tires were new, and the air pressure was correct.
2020 Ford Fusion · Engine · filed with NHTSA Mar 14, 2025 · ODI 11648279
In depth: 2022 Ford Bronco engine problems → · 2021 Ford Bronco engine problems → · 2022 Ford Bronco Sport engine problems → · 2021 Ford Bronco Sport engine problems →
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group179 other manufacturer communications filed against these Ford models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 55283 | Service bulletin | Oct 27, 2026 | Some 2023-2024 Bronco Sport vehicles equipped with a 1.5L EcoBoost engine may exhibit an "Engine Coolant Over-Temperature" message and an il… |
| SSM 55228 | Service bulletin | Oct 8, 2026 | Some 2020-2026 Aviator/Explorer/F-150/Bronco/Ranger vehicles equipped with a 2.7L or 3.0L (non-diesel) engine may need the front engine cove… |
| SSM 55217 | Service bulletin | Oct 6, 2026 | Some 2020-2024 Explorer/Aviator vehicles equipped with 3.0L EcoBoost/hybrid engine may exhibit blue or black exhaust smoke on startup for th… |
| SSM 55211 | Over-the-air update | Oct 2, 2026 | 2023-2026 Escape and 2025-2026 Bronco Sport vehicles equipped with a 1.5L EcoBoost engine may require removal of the turbocharger wastegate… |
| SSM 55157 | Service bulletin | Sep 9, 2026 | Some 2022-2024 Maverick Hybrid vehicles may exhibit an intermittent vibration and/or crunching noise after a cold start while the engine is… |
| 25L05 | Other | Sep 2, 2026 | Certain 2024-2025 Model Year F-150 Vehicles Equipped with 2.7L Engine Vehicle Emission Control Information (VECI) Label Update |
| SSM 55142 | Service bulletin | Sep 1, 2026 | Some 2023-2025 Escape vehicles built on or before 16-Sep-2024 equipped with 1.5L EcoBoost engine may exhibit an "Engine Coolant Over-Tempera… |
| 26N03 | Other | Aug 26, 2026 | Customer Satisfaction Program 26N03 Certain 2017-2019 Model Year Super Duty Vehicles w/ 6.7L Diesel Engines Diesel Particulate Filter Replac… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ford and Lincoln, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford SSM 52335 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the SSM 52335 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does SSM 52335 cover?
The manufacturer filed it against 198 model years across 2 brands (Ford and Lincoln): 2024 Ford Bronco, 2023 Ford Bronco, 2022 Ford Bronco, 2021 Ford Bronco, 2024 Ford Bronco Sport, 2023 Ford Bronco Sport and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.