Ford F-350 Super Duty sudden smoking and power loss after quitting at 75 mph on Ford F-350 Super Duty

Submitted by GeorgeMontana · Jun 23, 2025
Published by RepairPal

Problem overview

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.

1 person reported this problem
0 comments
Schedule Repair

Ford F-350 Super Duty vehicles with this problem

0 model year affected

Search for another problem

RepairPal Car Genius

Ask our experts about your Ford.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Available 9am – 6pm ET Monday through Friday

Call Our Experts
© 2026 RepairPal, Inc. RepairPal® RepairPal Certified®