Six problems related to engine exhaust system have been reported for the 2015 Ford F-350. The most recently reported issues are listed below.
At times and very frequently truck is losing power to accelerate, very slow to accelerate, will not go over 50mph. This happens everywhere doesn't matter the speed or location. When this happens the turbo psi reads 0, and you can't hear the turbo. A warning will come up that says the exhaust needs to self clean and drive to clean. Sometimes it will have thick smoke come out the exhaust that stinks. Sometimes the truck will shake violently when trying to accelerate or brake. Very dangerous when driving on the highway and the truck will not accelerate so that I can merge without being rear-ended. Sometimes it will loose all power so I have to let up on the gas and try again softly and it will slowly accelerate this has also happened at a traffic light that turned green for me, as I was entering the intersection I lost all power and was almost rear-ended. The first happened when I was trying to get into the right slow lane on the highway from being pulled over on the shoulder and as I stepped on the gas and the truck did not accelerate at normal speeds and I was unable to accelerate to speed in order enter traffic in time to not get rear-ended by the car coming up in the lane I was trying to enter thankfully the other driver switched out of that lane.
Exhaust filter cleaning when that warning comes on my trucks engine is really rough and shakes. This is when driving to clear the exhaust filter.
At times while driving at 45-60 miles per hour and while in 6th gear (automatic) after the "cleaning exhaust filter" message comes on when it cleans the exhaust twice within a 100 miles, the engine will shake and knocking/spiking noise after the second cleaning. This happens intermittently and I am unable to recreate the problem at the dealership. It doesn't happen all the time but when it does it feels like you have a loose wheel and it will jerking backwards and forth. Ford seems unaware of this problem and has no remediation on how to fix the problem. This started around 8000 miles the truck has 32,000 miles now.
At times while driving at 50-55 miles per hour when "cleaning exhaust filter" message comes on, the engine will shake and knock violently. This happens intermittently and am unable to recreate the problem at the dealership. It doesn't happen all the time but when it does it feels like you have four flat tires and it is very violent. Ford said this is normal, I know it's not. We live on very narrow and winding roads in the mountains. I'm afraid that if this happens on snowy or icy roads conditions the vehicle will be very had to control. This has happened 4 times. The date below is the last time it happened, mileage was 6,865. This first happened at about 4500 miles. Seems to happen at about 400-600 miles.
During driving on highway, exhaust regeneration cycle activated, violent shuddering and clattering from engine for 2 minutes.
Engine stopped once in the road pulling a 40 ft. R. V. . Intermintley severe loss of power and trying to overheat. Comeing down a 7200 ft. Mountain I lost the r. V. Brakes,engine brakes & the tow haul mode (to help slow down) all I had was the truck brakes going around 80 m. P. H. By the time I got stopped all 4 wheels were smokeing cooking the related parts, rotors, brake pads, calipers,wheel bearings in my opinion. Later in a town going slow and stopping the brakes pulled violently to the right, a few more traffic lights then violently to the left. Failing to clean the diesel exhaust filter as needed. Sometimes the wipers come on one time when starting the engine. 3 attemps to fix the engine problems and in my mind it is not fixed yet, most of these problems happened at higher altitudes. All this information should be in the trucks black box, since I could have gotten killed twice I have not let the dealer have the truck again as it is running o. K. Now and I have ordered a new truck because I am afraid of this truck. The dates are approximate, the dealers and I have a copy of the repair attemps . I was on the same roads two years ago with a 2011 f-250 same engine and a heaver load and did not have any problems.