For to Nissan Automotive CVT Transmission Solenoid Valve 7-Piece JF017E RE0F10E

    The role of the solenoid valve in the gearbox is to adjust the opening of the solenoid valve during the shift process to improve the smoothness of the shift. Different solenoid valves control different clutches or brakes, and play a role in different gear, each gear is controlled by one or several solenoid valves

    In hydraulic system, solenoid valve is divided into pilot control and direct drive control. Pilot solenoid valve control pressure and flow rate is relatively low, can not directly drive the actuator, can only provide pilot control pressure.
    The color of the hard oxide film of aluminum alloy varies from brown to dark brown, gray to black, due to the difference in aluminum alloy materials and processing technology. The thicker the oxide film, the lower the electrolyte temperature and the darker the color of the oxide film. The hardness of the hard oxide film is very high, up to 400~600HV on alloy aluminum, up to 1500HV on pure aluminum, and the hardness value of the inner layer is greater than the outer layer, according to this feature, it can be used to replace the traditional hard chromium plating process
     Early Jatco valve bodies (including the high-torque CVT8 transmission) did not use anodizing technology, and the valve body showed normal aluminum oxidation color. At present, speed failure, valve body failure of Nissan Qijun, Teana, Qashai models, mostly loaded with this valve body.