NHTSA ID Number: 10159504
Manufacturer Communication Number: SSM 47911
Summary
SSM 47911 – 2018-2019 F-150/Mustang
– 5.0L – Chirping Noise From Engine Compartment At Idle Some 2018-2019 F-150 and Mustang vehicles equipped with a 5.0L engine may exhibit a chirping type noise from the upper right side of the engine at a warm or hot idle. This noise may sound similar to a front engine accessory drive (FEAD) chirp noise. If the noise persists with the FEAD belt removed and is isolated to the front cover area, this noise may be due to the primary timing chain tensioner. This noise will not result in any engine durability concerns. Do not attempt any repairs at this time. Engineering is investigating, monitor OASIS for updates.
4 Affected Products
Vehicles
SSM 47911
SSM 47876
- Formulated for engines with 75,000 miles or more, Valvoline MaxLife High Mileage synthetic blend is formulated with seal conditioners to help prevent oil leaks and reduce oil consumption
- Delivers 20% better wear protection and 15% better sludge defense than industry standards to help prevent engine breakdown
- Extra detergents safeguard against friction, corrosion and deposits to keep high-mileage engines clean
- Advanced friction-fighting additives help maximize performance and improve fuel efficiency
- Provides performance benefits for high mileage, new and re-built engines alike
- Mobil 1 advanced full-synthetic motor oil 5W-30 utilizes Mobil 1’s signature Triple Action Formula to deliver outstanding engine performance, protection, and cleanliness.
- Helps protect critical engine parts for up to 10,000 miles between oil changes,* controlling oxidation to prevent oil breakdown and maintaining excellent viscosity
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Mobil 1 is specially formulated to help remove sludge and lower engine temperatures
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
- 6X better wear protection on critical engine parts than industry standards**
- 1.3X better sludge protection than industry standards*
- 3X Stronger against viscosity breakdown than leading full synthetic^
- Protection for 10,000 miles between oil changes
- As measured in Sequence VH sludge test vs. API SP limits
- Designed for vehicles with 75,000 miles or more, Valvoline MaxLife Full Synthetic High Mileage Motor Oil helps maximize engine life and performance for the many miles still ahead
- Formulated with seal conditioners to help prevent oil leaks, reduce oil consumption, and improve fuel economy
- Delivers 50% stronger wear protection than industry standards for superior defense against friction and wear
- Provides 20% stronger sludge defense than industry standards to protect against harmful buildup and deposits
- Offers 2.5X better heat protection than industry standards to safeguard engines in extreme conditions
- Advanced protection against the four main causes of engine breakdown: wear friction heat and deposits
- Delivers 40% stronger wear protection than industry standards to reduce friction and improve fuel economy
- Provides 15% better deposit defense vs. industry standards, keeping engines cleaner for smoother performance and longer-lasting protection
- Up to 2.5X better heat protection vs. industry standards to fight harmful sludge formation and thermal breakdown
- Engineered for excellent low-temperature flow, reducing metal-to-metal contact during cold starts — when most engine wear typically occurs
Last update on 2026-05-31 / Affiliate links / Images from Amazon Product Advertising API
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