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NHTSA ID Number: 10233745
Manufacturer Communication Number: SSM 51469
Summary
Some 2021 F-150 vehicles built on or before 01-Feb-2021, 2017-2020 F-150 vehicles equipped with a 3.5L EcoBoost engine, 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost or 5.0L engine, 2019-2020 F-150 vehicles equipped with a 3.0L diesel engine may exhibit a high pitched squeal or whistle type noise from the engine compartment after the engine is shut off. This condition may be due to the air conditioning (A/C) low side system pressure exceeding the high side pressure resulting in equalization of A/C system pressures through the A/C compressor. An updated A/C compressor has been released to resolve this concern. For claiming, use causal part 19703 and applicable labor operations in Section 11 of the Service Labor Time Standards (SLTS) Manual.
5 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
FORD | F-150 | 2017-2021 |
1 Associated Document
Manufacturer Communications
SSM 51469 – 2017-2021 F-150 – High Pitched Squeal/Whistle Noise From The Engine Compartment After Engine Shut Off – Built On Or Before 01-Feb-2021
MC-10233745-0001.pdf 122.172KB
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NHTSA ID Number: 10207139
Manufacturer Communication Number: SSM 50445
Summary
Some 2021 F-150 vehicles built on or before 01-Feb-2021, 2017-2020 F-150 vehicles equipped with a 3.5L EcoBoost engine, 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost or 5.0L engine, 2019-2020 F-150 vehicles equipped with a 3.0L diesel engine may exhibit a high pitched squeal or whistle type noise from the engine compartment after the engine is shut off. This condition may be due to the air conditioning (A/C) low side system pressure exceeding the high side pressure resulting in equalization of A/C system pressures through the A/C compressor. An updated A/C compressor has been released to resolve this concern. For claiming, use causal part 19703 and applicable labor operations in Section 11 of the Service Labor Time Standards (SLTS) Manual.
1 Associated Document
Manufacturer Communications
SSM 50445 – 2017-2021 F-150 – High Pitched Squeal/Whistle Noise From The Engine Compartment After Engine Shut Off – Built On Or Before 01-Feb-2021
MC-10207139-0001.pdf 116.821KB
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NHTSA ID Number: 10180420
Manufacturer Communication Number: SSM 49203
Summary
Some 2017-2020 F-150 vehicles equipped with a 3.5L EcoBoost engine, 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost or 5.0L engine, 2019-2020 F-150 vehicles equipped with a 3.0L engine, may exhibit a high pitched squeal or whistle type noise from the engine compartment after the engine is shut off. This condition may be due to the air conditioning (A/C) low side system pressure exceeding the high side pressure resulting in equalization of A/C system pressures through the A/C compressor. This noise is not detrimental to system operation or durability. Submit a Global Concern Report, and let the customer know they can continue to drive the vehicle. Set a follow-up appointment for June 2021 when repairs are expected to become available. Follow up with the customer to confirm the appointment once OASIS is updated.
1 Associated Document
Manufacturer Communications
SSM 49203 – 2017-2020 F-150 – Externally Controlled Variable Displacement Compressor – High Pitched Squeal/Whistle Noise From The Engine Compartment After Engine Shut Off
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NHTSA ID Number: 10169942
Manufacturer Communication Number: SSM 48404
Summary
Some 2017-2020 F-150 vehicles equipped with a 3.5L EcoBoost engine, 2018-2020 F-150 vehicles equipped with a 2.7L EcoBoost or 5.0L engine, 2019-2020 F-150 vehicles equipped with a 3.0L engine, and an externally controlled variable displacement compressor (EVDC) may exhibit a high pitched squeal or whistle type noise from the engine compartment after the engine is shut off. This condition may be due to the air conditioning (A/C) low side system pressure exceeding the high side pressure resulting in equalization of A/C system pressures through the EVDC A/C compressor. This noise is not detrimental to system operation or durability. Do not attempt diagnosis or repairs for this condition at this time. Engineering is investigating, monitor OASIS for updates.
SSM 48404 – 2017-2020 F-150 – Externally Controlled Variable Displacement Compressor – High Pitched Squeal/Whistle Noise From The Engine Compartment After Engine Shut Off
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- Universal - ZeroR AC Refrigerant is a hydrocarbon that safely bonds with chemicals like R134a, R1234YF and R12. We can only advertise this product to be used in R134a systems due to EPA regulations in the USA on both R12 and R1234YF systems. EPA also prohibits mixing refrigerant types. See the description for all legal disclaimers.
- Easy - This product installs just as easily as any R134a products. Cans even have R134a threads and the majority of R134a can taps will work for these cans.
- 6oz Cans - Refrigerants are compressed gasses and are measured by weight, not by liquid volume such as water. All gasses compress differently and produce a different weight. ZeroR AC Refrigerant is low weight compared to R134a, but its performance is equal to 16oz of R134a.
- Eco Friendly – ZeroR AC Refrigerant is a 100% Natural gas unlike R134a, R1234yf and R12.
- Safe – ZeroR AC Refrigerant has a class 2.1 flammability rating just like the new R1234YF which is now used in 100% of newly manufactured vehicles. Under normal operating conditions this product presents no danger to its users when handled properly and used in systems approved for flammable refrigerants.
- Approved for use in California
- High Mileage refrigerant for vehicles over 75, 000 miles
- Contains approximately 10 oz. of R-134a and 2 oz. of additives
- Contains leak sealer to seal common A/C leaks in rubber hoses, gaskets, and O-rings
- Contains high mileage No wear additives
- This item cannot be shipped to Washington or California
- Contains approximately 1.5oz of refrigerant and 1.5oz of additives
- Repairs Metal Leaks in evaporators, condensers, compressors, accumulators and receiver dryers
- Seals Rubber Leaks in O-rings, gaskets, and hoses
- With red dye for detecting leaks too large to repair
- Reusable dispensing hose designed for compliance and to work only with R-134a cans with self-sealing valve can tops
- Replaces lost R-134a refrigerant and oil in automotive A/C system
- System safe stop leak sealer stops most common A/C leaks with hoses, gaskets and O-Rings
- Special anti-wear additives extend system life and improve performance
- Contains R-134a gas which is acceptable for use in motor vehicle A/C (MVAC) systems
- Complies with Section 612 of the EPA Clean Air Act, EPA Compliant in Self Sealing Cans
- Digital gauge with guided command
- Guided Commands eliminate the guesswork
- 24” Long Hose
- Trigger Dispenser
- Quick Connect Coupler
- Universal PAG R134a Oil Charge, 4 oz. (9145)
Last update on 2025-04-19 / Affiliate links / Images from Amazon Product Advertising API
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