Some Ford F-350 Super Duty owners report experiencing sudden smoking and power loss after decelerating from 75 mph, which may indicate serious underlying issues. These problems could stem from engine malfunctions, such as mechanical failures or combustion process issues, leading to noticeable smoking and a drop in power. Additionally, fuel system problems, including clogged filters or malfunctioning injectors, have been reported to contribute to these symptoms. Owners have also noted that exhaust system malfunctions, like clogs or leaks, can exacerbate smoking and performance issues. It is recommended that affected owners have their engines inspected by qualified mechanics, conduct thorough checks of the fuel system, and examine the exhaust system to identify and address any potential problems. Regular maintenance and prompt professional assistance are essential to prevent and resolve these concerning issues effectively.
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