Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Ford Mustang owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2015 Ford Mustang. The contact stated while driving at an undisclosed speed and attempting to accelerate, the RPM's increase rapidly but the vehicle lost motive power. The contact also stated that there was a gasoline odor present inside the vehicle. The check engine and service engine warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed failures with the fuel tank filler pipe, fuel vapor line, and fuel supply tube. The fuel tank filler pipe was repaired. The fuel vapor line, and fuel supply tube were not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Numbers: 14V774000 (Fuel System, Gasoline) and 15V339000 (Fuel System, Gasoline); but the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. …
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.
The contact owns a 2015 Ford Mustang. The contact stated while entering the vehicle, he smelled an abnormal odor. The contact stated no warning light was illuminated. The contact stated that he opened the windows within 5 minutes the odor was gone. The contact stated while driving the air conditioning was not providing cold air and the front windshield started to become foggy, causing visibility issue while attempting to see the roadway. The contact also noticed a fuel leak on the fuel hose line. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had been informed of the failure. The failure mileage was approximately 20,000.
The contact owns a 2015 Ford Mustang. The contact stated that while driving at various speeds, a fuel odor would emit throughout her vehicle as the check engine warning light appeared on the instrument panel. The contact also stated that her vehicle would hesitate up the depression of the accelerator pedal. The contact initially took the vehicle to an independent mechanic who informed her that there was an issue with the fuel tank. The contact then took the vehicle to another independent mechanic who discovered a fuel leak coming from the fuel tank; however, the mechanic was unable to determine the source of the leak. Upon investigation, the contact discovered NHTSA Campaign Number: 15V339000 (Fuel System, Gasoline). The contact then called the dealer and the manufacturer and was informed that the vehicle was not included in the recall. …
With only 32,885 miles, engine light came on due to (P0456) EVAP small leak. Went to an auto shop and Ford dealer for diagnostic scan. Both technicians found that there is a bit of smoke coming out from the top of the fuel tank due to a small stress crack at the port near the canister vent hose as well as a small crack below fuel pressure sensor tube. New fuel tank replacement was recommended as the crack could not be repaired. Cost to fix is $1,400 parts and $1,200 labor. This small crack nears the fuel tank seems to be a major concern for owners as it could increase the risk of vehicle fire and should be a recall by Ford for immediate remedy.
Canister purge valve malfunction stuck in an open position. If this occurs, an excessive vacuum in the fuel system could cause deformation of the vehicle's plastic fuel tank. Indicator light check engine with fluctuating or inaccurate fuel levels. This could lead to a stall while driving and/or an inability to restart the vehicle, which can increase the risk of a crash.
There is a recall for fuel odor on build dates 9/14-10/14 due to a failed fuel line sensor. My vehicle has a build date of 8/14 and is experiencing the same issue but not covered under the recall, which is a heavy fuel odor after putting gas in. Any amount of fuel put in has a severe odor, it doesn't have to be filled.
The fuel tanked cracked. It was no longer able to hold vacuum. The engine light came on and stayed on. The 2.3L mustang had a similar issue due to heat. It was inspected and fix at a local repair shop.
Tl* the contact owns a 2015 Ford Mustang. The contact stated that when his daughter would drive the vehicle at various speeds, she could smell a burning rubber odor emitting from the vehicle. While the contact's daughter was driving at 50 MPH, she noticed white smoke coming from the engine without warning. The driver immediately pulled and called her father. The contact had the vehicle towed to an independent mechanic who discovered that the valve cover gasket had caused oil to spill over the manifold. The contact then called angela krause Ford (1575 mansell rd, alpharetta, ga 30009) where they informed him that there were no recalls on the vehicle and referred him to the manufacturer. The manufacturer had been notified of the failure and informed him that the dealer would have to perform a diagnostic to determine the cause of the failure. …
I was driving down the road and when I tried to brake for a stop light the brake pedal pulsed against the pressure of my foot and would not let me stop. I used the emergency brake to keep from wrecking my vehicle into the vehicle in front of me. I decided to go directly to my workplace, using my emergency bake to stop at each light/stopsign, after this happened. In addition to the brake issue, when I went to accelerate from stop the vehicle would accelerate very slowly as if in a limp mode. No lights have appeared on my dash and Ford has told me there are no codes stored. They say that having it towed has reset my vehicle?!? Ford has told me that because they dont see any codes stored in the computer I should pick up my vehicle and drive off with it. …
Related recalls
Fuel system, gasoline › Storage › Tank assembly
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Mustang vehicles manufactured February 14, 2014, to February 10, 2015, and equipped with 2.3L engines. Prolonged exposure to elevated underbody temperatures can cause degradation of the fuel tank and/or fuel vapor lines, which may eventually result in a fuel…
Remedy: Ford will notify owners, and dealers will replace the fuel tank shield, add thermal patches to the fuel tank and parking brake cable, and add thermal wraps to the fuel vapor lines.
Fuel system, gasoline
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Mustang vehicles manufactured September 25, 2014, to October 9, 2014. The fuel pressure sensor may not have been seated properly to the fuel jumper line, which may cause a fuel leak.
Remedy: Ford will notify owners, and dealers will replace the fuel jumper line, free of charge. The recall began on December 17, 2014. Owners may contact Ford customer service at 1-866-436-7332.
Fuel System complaints in other Mustang years
Frequently asked questions
How common are fuel system problems on the 2015 Ford Mustang?
NHTSA has 32 complaints about the fuel & propulsion system of the 2015 Ford Mustang, 7% of the model year's 438 complaints. The component named most often is storage › auxillary tank (1 mentions).
Is there a recall for 2015 Ford Mustang fuel system problems?
Yes — NHTSA recall 15V-339 (tank assembly, Jun 2, 2015); NHTSA recall 14V-774 (fuel system, gasoline, Dec 5, 2014). Recall repairs are free at authorized dealers.
At what mileage do 2015 Ford Mustang fuel system problems start?
Half of the complaints with a recorded mileage happened before about 36,000 miles, and 33% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 2 fires and 0 injuries to fuel & propulsion system problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.