2015 Ford Mustang engine problems

Filed Jul 26, 2026 · Electrical, Engine · GA

I am filing a formal safety complaint regarding a catastrophic Electronic Power Assisted Steering (EPAS) failure and severe electrical short circuit on my 2015 Ford Mustang. This vehicle is exhibiting hard fault code B137F:09 (Steering Wheel Left Switch Pack: Component Failure / Short to Ground or Open). This electronic failure creates an immediate, severe safety hazard that goes entirely outside the scope of normal vehicle wear and tear. While driving, the vehicle's steering wheel pulls and jerks violently on its own, actively fighting my manual steering inputs. Furthermore, this internal electronic short creates a massive parasitic electrical draw that prevents the vehicle's computer modules from entering sleep mode when turned off. This has resulted in the primary vehicle battery draining completely flat and causing the vehicle to completely shut down, stall, or lose total electrical power altogether. A vehicle that forcefully steers itself away from the intended path of travel and suffers total electrical shutdown is a clear, life-threatening safety risk to myself and others on the road. Ford Motor Company is fully aware of this dangerous defect. They previously issued Safety Recall 15S18 for a very specific, limited batch of early-production 2015 Mustangs experiencing identical EPAS failures, replacing their steering gears for free. For the remaining 2015 Mustang owners experiencing the exact same hazardous failure, Ford quietly shifted the issue over to a Technical Service Bulletin (TSB / SSM 51312). By limiting the scope of Recall 15S18 purely due to the financial cost of a universal recall, Ford has left an entire population of 2015 Mustang owners in direct harm's way. Some owners received a free lifetime safety fix, while the rest of us are being forced to pay thousands of dollars out-of-pocket to correct an identical factory electronic defect. I request that the federal safety agency immediately open an investigation into Ford's handling of the 2015 Mustang EPAS and more.

Filed Mar 12, 2026 · Engine, Fuel system · TX · fire

I was driving down the highway with heater on and defrost. All of a sudden I hear a pop and my car started bogging down. I exited the highway to get out of danger, it then had a wrench light ( transmission) pop up and when I parked the car on the access road it started smoking a lot. I turned the vehicle off immediately and when I seen smoke coming from under the hood and into the cab of the car. I lifted the hood after seeing fire in the passenger wheel well. And then in the engine block towards the windshield in the middle of the engine. I am a fire fighter and it appeared to me that the fire was being fed by some kind of substance. Fort Worth Fire department showed up and put the fire out and took a report.

Filed Dec 18, 2025 · Engine · SC · fire

“Charge system service now” came on the dash, battery lost power after about 10 seconds, screen went black, dash went black, car locked up, opened the hood and the engine was on fire, called 911 who came quickly and put the fire out without the entire car burning, insurance later total losses the car. I don’t know if it was the battery or the engine responsible for the failure, because the flames were on the engine and not the battery, but the incident was triggered by a battery warning. I was on the interstate driving 60mph when the car shut off and everything including my headlights and even hazard lights went black. Not only could I have been struck by a car on the interstate, I could have died in a car fire. Because the car locked up, I couldn’t open the trunk or use any electronics. The door could have just as easily locked and trapped us inside a burning car. The car is on a salvage yard, no attempt to replicate has been made. Progressive insurance, and Columbia fire inspected it and found that it was undetermined. “Charge service system now” was the only warning before the infotainment screen shut down to reduce battery usage. Every light on the dash flashed right before everything on the dash went black and power was lost to the entire vehicle.

Filed Sep 22, 2025 · Engine, Transmission · FL

The evaporator is leaking and apparently is a known issue from ford and they didn't report this. The evaporator core is leaking and it blows hot air for a good amount. It draws a lot of power form the system and drops the rpm below idling. Forcing me to rev a cold engine so that it does not stall out.

Filed Jan 22, 2025 · Engine · FL

The most common engine failure issues are associated with the 2.3L EcoBoost engine, which is prone to coolant leaks causing significant damage to the engine.

Filed Aug 26, 2024 · Brakes, Electrical · NM

Brake lights don’t function brake switch bumper broke off and lights stay on but not bright when brake is depressed. Loss of power random misfire cut from loss of power. Brake switch fault in computer

Filed May 22, 2024 · Electrical, Engine · CA

A plastic clip ("Brake Pedal Bumper") broke and fell out of place, causing the brake pedal to no longer reach the brake light switch. The brake lights now remain illuminated permanently, even with the brakes released. This also caused the engine and transmission to go into "limp mode", the engine no longer revving over 2,000 RPM, the transmission not shifting, and hill-start assist and traction control no longer working, making the car unsafe to drive. The brake lights will remain on even when the car is completely shut off and locked, draining and damaging the battery. It is my understanding that this is a known issue, and there was a recall for this in certain states. (Safety Recall 22S02, Regional Recall 22R01). There should be a national recall for this, as the affected part appears to be of low quality, and causes safety issues when it fails, with the car's drivability and lighting affected.

Filed Dec 7, 2023 · Engine, Transmission · IL

After 5 visits to a Ford dealer, rough idling issue finally discovered and fixed on 5/4/2023. All 4 VCT solenoids were found to have malfunctioned. Issue began 06/2020 and involved car rough idling at stops or stop and go traffic. No codes were shown on dash. During episodes, car might shut off. It would turn on if car restarted again. Vehicle first seen at Ford dealer on 7/3/2020. No issue found. Follow-on visits on 3/11/2021, 10/25/2022, and 3/22/2023 brought no answers to issue. Car left at dealers for 2-5 days at a time.

Filed Nov 23, 2023 · Engine, Transmission · TX

2015 mustang ecoboost premium with performance package. Coolant leaked into the engine oil, causing damage to the engine. Now the engine may have to be rebuilt or replaced.

Filed Sep 1, 2023 · Brakes, Electrical · CA

The little rubber pad that it attached to the brake pedal disintegrated. Without that pad the vehicle goes into limp mode and won’t drive over 40. Don’t know why the brake switch is connected to other electronics in the vehicle that would make it go into limp mode. Very unsafe while driving on the highway.