2015 Ford F-250 SD: sudden loss of power

Filed Aug 8, 2023 · Fuel system · 284,000 miles · SC

The contact owns a 2015 Ford F-250. The contact was exiting a highway ramp at approximately 60 MPH when the check engine and reduced engine power warning lights illuminated. The contact pulled over, stopped the vehicle, turned off, and restarted the vehicle to reset the warning lights. The contact stated that the warning lights again became illuminated, and the vehicle started to lose motive power. The contact was able to safely reach his destination and later the vehicle was taken to an independent mechanic where the vehicle was diagnosed, and it was determined that the fuel pressure sensor needed to be replaced. The vehicle was test-driven and several unknown warning lights were illuminated. The vehicle was driven back to the mechanic who drained a fuel line and discovered metal shavings in the line. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 284,000.

Filed Jun 20, 2023 · Fuel system · 101,000 miles · NC

The contact owns a 2015 Ford F-250. The contact stated while driving 55 MPH, the vehicle went into "Reduced Engine Power” mode and decelerated to 20 MPH. The contact pulled over to the side of the road. The vehicle was towed to a certified mechanic who diagnosed that the fuel system had failed. The fuel pressure regulator was replaced however, the vehicle remained in "Reduced Engine Power" mode. The vehicle was taken to the dealer who diagnosed that the fuel pressure regulator failed again and needed to be replaced. The contact informed the dealer that the fuel pressure regulator had been previously replaced. The dealer re-inspected the vehicle and informed the contact that the fuel tank was rusted, and the fuel pump, injector pump, and fuel system needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and referred the contact to the federal safety agency Hotline. The approximate failure mileage was 101,000.

Filed Oct 8, 2020 · Suspension · 73,000 miles · OH

While driving at highway speeds my steering wheel shakes very violently when hitting bumps in road the shaking doesn't go away till I get vehicle slowed down to about 20 MPH doing this on a interstate is very dangerous. This is happening more frequently on 10/7/20 this happened and it shook so bad air cleaner came off and vehicle lost power and stopped on highway. Vehicle had to be towed to a dealer. They found the maf sensor became dirty when air filter came off so they clean it test drove vehicle and verified vehicle shaking. They said suspensions looked good but had slight wear on track bar ball joint. They wanted to replace the steering damper and I showed them that it was replaced on 10/6/20 for the same shaking problem. I asked if this would repair the shaking they said they were not sure but it would eliminate it as a possibility. I declined their guessing game at my expense. This shaking problem is going to get someone hurt or killed and ford needs to get a cure for this problem

Filed Nov 15, 2019 · Brakes, Driver assistance · 156,000 miles · TX

The ABS system and the advanced auto trac malfunction and causes loss of breaks. Ford can not diagnose the problem and seems unworried about the issue. I have questioned ford about this problem and the response I get is it could be a number of issues. They want to start changing parts at my cost without knowing what it is or not wanting to admit what the problem is. This happens when the truck is in motion and happens without cause. A bell goes off you lose power for a short period of time and lose breaks for periods of time while bells are going off.

Filed Nov 6, 2018 · Fuel system · 41,000 miles · GA

After driving approx 1 mile on surface street leaving work, a grinding noise was heard from fuel pump under vehicle under driver location. After 30 seconds check engine light illuminated and low fuel pressure message appeared in message area. Then reduced power appeared in message window. It happened so quickly that it left me stranded in the middle of the street with traffic on both sides until police came by and assisted. The truck was only able to idle for a minute until it died in the middle of the street. Truck was taken via tow truck to local ford dealer. Once there diesel tech cleared codes and stated they could not find anything wrong.

Filed Aug 9, 2017 · Fuel system · 65,000 miles · OK

July 21 2017 8:00 pm near chama new mexico pulling a 10,000 pound fith wheel trailer climbing a mountain pass the truck chimes flashes a warning and goes into reduced power mode with no previous warning ( very unsafe condition with location and warning) this diesel truck was designed to pull a trailer ??? After research we limped off of the mountain pass warnings were the flashed on the dash that to clean the exhaust filter we needed to drive as we did to no avail, stopped for the night unhooked the trailer land we were able to partially clean the exhaust filter with no load on the vehicle. After the trip we had the truck checked at the purchasing dealer the did a manual regeneration of the exhaust filter this is a safety concern not being able to maintain the emissions system within normal maintenance.

Filed Nov 1, 2016 · Engine, Fuel system · 15,000 miles · GA

Within 60 seconds of the message "cleaning exhaust filter", the 6.7l engine begins to loose power, vibrating, and making very loud clanging noises. All while driving at 60-70 MPH, causing a huge deceleration, down to 45 MPH if going up an incline, due to lose of power. This started at 7,000 miles and happens at least 1 per tank of fuel.

Filed Aug 25, 2016 · Engine, Fuel system · AZ

Exhaust cleaning cycle causes extremely rough running conditions. Severe engine knocking seems as though a piston will fly through the hood soon. Significant loss of power at any speed during this time. Brand new truck purchased from dealership and this has happened from purchase point all the way through 27500 miles so far. In reading I have found thousands of others that experienced the exact same issue.

Filed Aug 16, 2016 · Engine · 16,000 miles · MO

During regen cycle for diesel motor, vehicle begins to making a knocking noise and then begins to shake, and finally give feeling of losing power. Because of this, fearful the vehicle could encounter this situation at times where it could pose great danger. This occurs at various speeds and driving conditions. Issue was previously "addressed" in a bulletin from manufacturer; however, there is more to this condition. What vehicles don't idle or drive at highway speeds for a period of time or don't make short trips? Most recent occurrence happened on 8/15/16, but has been occurring for the two months-- is getting progressively worse in lei ration and force. Have taken to a dealership and they said they could find nothing wrong-- they didn't even act like they knew anything about the issue occurring and they definitely did not mention the precious manufacture bulletin tsb 15-0088. Have begun to research this issue and it appears an update was to occur in march 2016, but have not been notified of any issues? Needs to be looked at closely to ensure it is not a design flaw or worse.

Filed Jun 21, 2016 · Engine · 700 miles · FL

The truck runs very rough during a regen cycle. Engine knocks and clatters with loss of power.

Filed Nov 16, 2015 · Engine, Fuel system · 6,000 miles · MD

During the epa mandated exhaust regeneration cycle the vehicle begins to shudder uncontrollably along with power loss. This behavior began at around 5,500 miles and now does it at least every other exhaust regeneration. It happens on multiple lane country roads and city roads at around 50 to 60 miles per hour. It seems more specific to the regeneration cycle than any other driving condition or input. Temperature is between 40 and 70 degrees outside so far. Each time it happens is worse than the last. The experience is scary and could be very dangerous. I no longer let my wife drive this vehicle for fear that it may shudder her off the highway.

Filed Oct 15, 2015 · Engine · 9,000 miles · WA

I have a 2015 ford f-250 super duty with a 6.7l diesel. I started having this problem intermittently and only noticed it on hot days while at slow speeds, but it has continued to get worse to the point that it happened with every re-gen, at any outside temperature and almost any speed. It all starts with the notification on the screen of clearing the exhaust filter and has an ok in the corner of the screen. Not sure why the ok, since you have no choice on whether to start the process or not. During the re-gen process the engine suddenly and without any notification, looses power, starts to shake and shutter so violently that it shakes the whole truck. The only way to stop it is to put the throttle to the floor. If I let off the throttle it starts over again. The two safety concerns that it causes are the sudden loss of power and my truck suddenly slowing down without any brake lights to warn drivers behind me (I was almost rear-ended last time it happened in town) and secondly, having to keep the throttle on the floor to stop the problem and the speed the truck obtains when doing so. There are times when I cannot step on the throttle because of the speed limit, traffic or road conditions, and am forced to pull over if there is an area to so, if not I keep chugging along holding up traffic until I can. I have not pulled a trailer as of yet, but quite frankly an afraid to do so with this problem for fear of being rear-ended. It occurs at speeds from 30 to 70 MPH. It has happened in town on rural roads and on the highway. It has been into ford several times and they have not been able to fix the problem. The last time it was at ford, the service manager told me ford is aware of the problem and will be coming out with a software revision, but not until april of 2016. The truck is unsafe to drive until then.