High/Elevated Idle After Extended Idle Periods – Selective Catalyst Reductant (SCR) System – 2011-2022 Ford F-Super Duty & 2016-2023 F-650/F-750

2022 Ford F-Super Duty

NHTSA ID Number: 10237789 Manufacturer Communication Number: SSM 51691 Summary 2011-2023 F-Super Duty and 2016-2024 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 …

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