HF35 eCVT gearbox failure in 2018 Ford Fusion Energi 2.0 Titanium

While driving the 2018 Ford Fusion Energi 2.0 Titanium equipped with the Ford HF35 eCVT transaxle transmission, certain issues related to sound phenomena and anomalies have been observed.

During the vehicle's operation, a distinct noise was detected, indicating a potential problem with the bearing or friction-related sounds. This sound becomes particularly noticeable during light braking, when energy recuperation is activated. Additionally, historical records show instances where significant humming and noise occurred during extended periods of travel at speeds exceeding 140 km/h (about 87 mph) for more than 3 hours, as well as during acceleration up to 130 km/h (about 81 mph). It is worth noting that after some time following the last occurrence of humming, similar sounds were not observed.

Based on past experiences, it can be concluded that improper operation of the HF35 eCVT transmission can lead to adverse effects on its operational condition and overall efficiency. It is important to adhere to the manufacturer's recommendations regarding the use of the vehicle, including avoiding excessive speeds and other loads that could affect the transmission's condition.

Considering the aforementioned, it is advisable to consult professionals to conduct an inspection of the transmission's condition and identify possible defects. Additionally, following the guidelines for proper operation and maintenance of the vehicle is crucial to ensure its reliable and long-lasting performance.