2017 Ford Fusion engine problems

“While driving, the vehicle suddenly lost engine power (it shut off) and displayed "auto start stop shift to P, then restart engine". The vehicle has never done this before, and thank goodness my wife did not have the kids in the car at the time. She was able to pull over safely only because she was on a small road with light traffic, and not at highway speed. Clearly, this put not only our vehicle at risk, but others as the brakes and steering became very hard to use when the engine just shut off out of nowhere. Since it happened today, I have not taken it in to be inspected as of yet. Upon my wife getting the car restarted she came the few miles straight home, where I did test the battery and it read good at 12.57 volts with the engine and accessories off. So the Motorcraft battery is good and as such should not be a cause in this case. To say the least, we have now lost confidence in this vehicle as being a safe mode of transportation.”

“We purchased this 2017 Ford Fusion 1.5L EcoBoost in August 2022 at 48,968 miles. At 55,940 miles, the vehicle developed a documented coolant leak requiring water-pump replacement. At approximately 75,520 miles, the coolant level was again documented as requiring attention. At approximately 84,189 miles, the vehicle experienced low coolant, low oil, white/gray smoke and rough running. Manteca Ford identified Ford TSB 22-2322 and ultimately performed a major short-block replacement. Despite this major engine repair, mechanical and drivability problems continued. At approximately 101,375 miles, we returned the vehicle to Manteca Ford specifically for loss of power and hesitation. The Ford technician verified a “noticeable loss of power” and lack of full boost. Manteca Ford diagnosed and replaced the turbocharger. The problem was not resolved. Only approximately 205 miles later, at 101,580 miles, the vehicle returned to Manteca Ford because it was still hesitating during acceleration. Manteca Ford then identified DTCs P0729, P07AA, P2703 and P2704 and documented “TRANSMISSION INTERNAL MECHANICAL FAULTS,” including an incorrect sixth-gear ratio and friction-element…”

“I am submitting this complaint regarding a serious engine failure and safety issue involving my 2017 Ford Fusion equipped with the 1.5L EcoBoost engine. At approximately 79,000 miles, my vehicle experienced a coolant intrusion failure. While driving, the engine suddenly stalled in the middle of an intersection, leaving me stranded in traffic and at risk of being rear-ended by approaching vehicles. I was able to restart the vehicle and move out of the intersection, but the exhaust then produced a very large, thick cloud of white smoke. The amount of smoke could have significantly reduced visibility for other drivers and created an additional safety hazard. I took the vehicle to a Ford dealership, where I was told the engine had coolant intrusion and needed to be replaced. I was also told this is a common problem with Ford EcoBoost engines, including the 1.5L, 2.0L, and 2.3L engines. My concern is not only the cost of the repair, but the serious safety risk. Coolant intrusion can cause misfires, excessive white smoke, engine damage, and eventual engine failure. A sudden loss of power while driving can create a serious crash hazard, as happened to me. I am…”

“The contact owns a 2017 Ford Fusion. The contact stated that while driving 60 MPH, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The vehicle lost motive power, and the RPM became elevated. In addition, the contact became aware of an abnormal odor. The contact referenced an unknown recall; however, the VIN was not associated with a recall associated with the failure. The failure mileage was approximately 150,000.”

“2017 Ford Fusion. Transmission replaced February 2026 at 98,175 miles by independent repair facility. Check engine light illuminated immediately following replacement and has remained on continuously since. Autozone scan showed emissions-related code only. On August 28, 2026 at approximately 120,064 miles, orange wrench light and "See Manual" message appeared moments after hot restart. Acceleration became heavy and hesitant. Drove approximately 70 miles home via I-15; heavy traffic required engine shutdown at multiple stops. Following morning, wrench light was no longer illuminated but hesitation persisted. Using manual paddle shift to select 5th gear improved drivability. Replacement transmission accumulated approximately 22,000 miles over 6 months. Ford Motor Company has issued multiple recalls for 2013-2016 model year Fusions involving identical transmission, shifter cable bushing, and torque converter defects, but 2017 model year vehicles with identical 6F35 transmissions and failure symptoms have been excluded from all campaigns. No crash, fire, or injury occurred.”

“If i do not run my car for atleast 10 minutes before driving, my gas tank will start making a loud horn sound, and when this happens and i go to slow down, the car will shut off. Mechanics say there’s an issue with the purge valve and the charcoal filter. I’ve already had this issue fixed three times and it comes back less than a week prior to service”