Three problems related to engine exhaust system have been reported for the 2016 Ford F-350. The most recently reported issues are listed below.
The contact owns a 2016 Ford F-350. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer. The dealer diagnosed that the diesel exhaust fluid (def) reductant heater needed to be replaced. The dealer informed the contact that the VIN was not included in a recall. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure and referred the contact to file a complaint with NHTSA. The failure mileage was approximately 52,500.
At approx. 4600 miles the engine started to shake violently a couple of miles after the emission regeneration started. Ford has a service bulletin on this issue for f350 super duty trucks built in 2016. Apparently the computer increases the fuel in one side of the cylinder head in order to burn off the soot on the emission filter. This causes the engine to back fire continually. The first time it happened we thought that the exhaust fell off it sounded so bad. The shaking got to be so bad that we had to pull off to the side of the road and turn off the engine when it happens. The truck was in three times for service at 5985, 10669 and 15210. First, Ford did a software update. The second time it was in for repair, the dealer pulled off the cylinder head and replaced it. That didn't work either. Now, Ford has decided to replace the entire engine. It takes about 5000 miles for the issue starts happening, so we will see if the new engine does the same thing.
When 2016 F-350 sd pulling 18000 lb camper on interstate highway running 65-70 mph goes into exhaust cleaning mode, the vehicle speed drops to approx 45mph in short distance. Vehicle is acting like limp mode. No codes are present. When exhaust cleaning mode clears, vehicle resumes normal speed. This has happened twice in the last month. Ford tells me this is normal. Feel this is a major safety hazard when speed suddenly drops ~30 mph with chance of rear end collision. This problem has only happened when pulling 18000 lb camper. Have not seen problem with no load.