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NHTSA recall 20V691000

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

Campaign
Published byNHTSA (United States)
Campaign number20V691000
Manufacturer's number20S66
ManufacturerFord Motor Company
Reported2020-11-10
Owners notified2020-12-21
ComponentPOWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES
Units potentially affected225
Part numbersFC4Z-7C410-A
Remedy progress the manufacturer reported
ReportAnnual report 3, for 2024 quarter 4 to 2025 quarter 3
Filed with NHTSA2025-10-26
Vehicles in the campaign225
Reported remedied182 (80%)
Reported unreachable1
Reported removed0

These are the manufacturer's totals for the whole campaign at the end of 2025 quarter 3, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.

What is wrong

Ford Motor Company (Ford) is recalling certain 2021 F-650 and F-750 vehicles equipped with 7.3L gas engines. The transmission oil cooler line may contact the air conditioning compressor pulley, possibly causing a transmission fluid leak.

What can happen

Leaking transmission fluid may contact hot engine components, increasing the risk of an engine compartment fire.

The remedy

Ford will notify owners, and dealers will inspect transmission oil cooler lines for proper orientation and damage, correcting the lines and replacing any that are damaged, free of charge. The recall began December 21, 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S66.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Vehicles this campaign lists
2021 FORD F-650
2021 FORD F-750

A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.

Bulletins for the same vehicles and component

Bulletins for the same vehicles and component
SSM 509772022-08-02. Service bulletin. Some 2021-2022 F-Super Duty and 2021-2023 E-Series vehicles equipped with a 6.2L or 7.3L gasoline engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0457 stored in the powertrain control module (PCM). This may be due to a loose fuel filler cap. The fuel filler cap design has changed, requiring multiple turns to seal properly. Advise the customer to turn the fuel filler cap clockwise until there is at least one audible click to seal properly. For further diagnostics, refer to Workshop Manual (WSM), Section 303-13 - pinpoint test HX.
SSM 506362022-03-29. Service bulletin. 2011-2022 F-Super Duty and 2016-2023 F-650/F-750 vehicles equipped with a 6.7L engine may exhibit an elevated idle condition. During prolonged idle time, vehicles may experience this elevated idle to reduce unburned hydrocarbons from the SCR. The powertrain control module estimates hydrocarbon levels in the SCR and may increase idle speed to remove them. Idle speed will be increased to 1000 RPM for ambient temperatures near 26°C (80°F) and may increase to 1200 RPM at -40 °C (-40°F). Vehicles may exhibit exhaust smoke and diesel exhaust fluid smell during elevated idle condition. Exhaust smoke and smell condition will not affect reliability or durability of the engine. Power take-off (PTO) use and idle set point control will disable elevated speed. It is required that the operator monitor the vehicle and adhere to any Exhaust Filter warning messages.
SSM 505492022-03-08. Service bulletin. Some 2018-2020 F-150, 2017-2022 F-Super Duty and 2016-2022 F-650/F-750 vehicles equipped with a diesel engine may exhibit diagnostic trouble code (DTC) P0000 stored in the powertrain control module (PCM) after an on-demand self test. This DTC is due to a processing error in the PCM as a result of on-demand self testing. P0000 is an invalid DTC that will not illuminate the malfunction indicator lamp (MIL) and no repairs should be performed.
TSB 21-21982021-07-01. Service bulletin. Some 2021 F-650/F-750 vehicles equipped with a 7.3L engine may exhibit various electrical concerns and/or various illuminated warning lamps with various diagnostic trouble codes (DTCs) present. This may be due to the powertrain control module (PCM) wiring harness contacting the air conditioning (A/C) compressor inlet line. To correct the condition, follow the Service Procedure to repair any damaged circuits and secure the PCM wiring harness to the main wiring harness.

A bulletin is the manufacturer's note to its dealers. It is not part of this recall.

Check one vehicle officially