Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2020 Ford Fusion owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2020 Ford Fusion. The contact stated that the fuel door would randomly disconnect from the vehicle. While idling at a stop light, the vehicle shut off. The contact stated that while restarting the vehicle the vehicle jerked and hesitated while shifting gear before accelerating. The vehicle was taken to the dealer who was unable to determine the cause of the failure because there was no warning light illuminated. The fuel door had been replaced; however, the vehicle still experienced the failure with the START/STOP function. The contact stated that the failure became a persistent failure. The contact stated that approximately 6 to 8 months after the first failure, while driving approximately 35-45 MPH, the vehicle stalled. The contact used the App to restart the vehicle. The check engine warning light was illuminated. …
The contact owns a 2020 Ford Fusion. The contact stated that while starting the vehicle, there was a rattling noise coming from the front end near the driver's side close to the transmission. The vehicle would start moments after the failure had occurred. The rattling was more pronounced while the A/C system was running. The contact stated that while depressing the accelerator pedal, the rattling sound was noticeable. Additionally, while driving at various speeds, the transmission felt as though it was slipping while changing gear. The contact stated that while inspecting the engine, underneath the hood was hotter than normal. The check engine warning light was illuminated. The vehicle had been taken to the dealer where it was diagnosed that the transmission flex plate had failed. The failure was linked to NHTSA Campaign Number: 10218899 (Power Train). The vehicle had not been repaired. …
The contact owns a 2020 Ford Fusion. The contact stated while driving 25 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. The contact stated there was an abnormal sound coming from the engine. The vehicle as taken to the dealer; however, no cause for the failure was found. The cam shaft sensor was replaced; however, the failure persisted. The contact stated that on another occasion, while driving 8 MPH, the engine seized. The message "See Manual" was displayed. The vehicle was taken to an independent mechanic but was not diagnosed or repaired. The vehicle was taken to several dealers and independent mechanics. The contact was recently informed that the engine needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was not notified of the failure. …
The contact's brother owns a 2020 Ford Fusion. The contact stated that while the owner was driving 35 MPH, the engine overheated and there was misfire coming from the engine. The check engine warning light illuminated, and there was fluid leaking into the engine. An independent mechanic was contacted by phone. The vehicle was taken to the independent mechanic and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The contact was informed that the failure was a known failure with the vehicle. In addition, the contact was informed that the failure was due to the manufacturing design of the engine. The manufacturer was contacted by phone and a case was filed. The failure mileage was approximately 72,000.
The contact owns a 2020 Ford Fusion. The contact stated that after starting the vehicle, while the vehicle was idling, there was an abnormal knocking sound coming from the engine. There was no warning light illuminated. The vehicle was taken to two independent mechanics, and unknown repairs were performed on the vehicle; however, the failure persisted. The contact took the vehicle to a dealer, where a diagnostic test was performed. The diagnostic test determined that the flex plate was cracked and needed to be replaced. The manufacturer was notified of the failure but offered no assistance. The contact was referred to the NHTSA Hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 117,000.
The contact's husband owns a 2020 Ford Fusion. The contact stated while driving at various speeds, there was an abnormal rumbling sound coming from the engine. There was no warning light illuminated. The vehicle was taken to a dealer where a diagnostic test was performed. The mechanic discovered a failure with the flex plate. The contact was initially informed that the vehicle was covered under warranty; however, the contact was later informed that the engine repair was not covered under warranty. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The vehicle remained with the dealer unrepaired. The failure mileage was approximately 70,000.
The contact owns a 2020 Ford Fusion. The contact stated that while driving approximately 35 MPH, the message "Engine Coolant Over-Temperature" was displayed, and the temperature gauge warning light illuminated. The contact pulled over to the side of the road and turned off the vehicle. The vehicle was restarted after 20 minutes. The vehicle was taken to the residence. The vehicle was towed to a dealer, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 132,000.
The contact owns a 2020 Ford Fusion. The contact stated that after starting the vehicle there was an abnormally loud knocking sound coming from the engine compartment. The vehicle was taken to the local dealer who diagnosed that the flex plate was cracked and needed to be replaced along with the torque converter, the transmission fluid pump, and seals. The vehicle was repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was no longer eligible for a Customer Satisfaction Campaign related to the failure. The failure mileage was 122,000.
The contact owns a 2020 Ford Fusion. The contact stated that while driving at various speeds, there was a rattling sound coming from the engine compartment. The contact stated that the sound was also noticed while idling or with the air condition activated. The check engine warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed and determined that the flex plate needed to be replaced. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 84,994.
The contact owns a 2020 Ford Fusion. The contact stated that upon starting the vehicle, the contact noticed smoke coming from the engine compartment. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that coolant intrusion into the cylinder had caused the engine to fail. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 112, 000.
Engine complaints in other Fusion years
Frequently asked questions
How common are engine problems on the 2020 Ford Fusion?
NHTSA has 57 complaints about the engine & cooling of the 2020 Ford Fusion, 31% of the model year's 184 complaints.
Is there a recall for 2020 Ford Fusion engine problems?
No. NHTSA lists no engine & cooling recall for the 2020 Ford Fusion, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2020 Ford Fusion engine problems start?
Half of the complaints with a recorded mileage happened before about 85,000 miles.
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.