High Pitched Squeal/Whistle Noise From The Engine Compartment After Engine Shut Off – 2017-2021 Ford F-150

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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

https://www.nhtsa.gov/recalls?nhtsaId=10233745

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

https://www.nhtsa.gov/recalls?nhtsaId=10207139

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

https://www.nhtsa.gov/recalls?nhtsaId=10180420

MC-10180420-0001.pdf 29.894KB

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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

https://www.nhtsa.gov/recalls?nhtsaId=10169942

https://static.nhtsa.gov/odi/tsbs/2019/MC-10169942-0001.pdf

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