Ford E-250 transmission shifting issue, requires letting off gas to shift from first to second gear on Ford E-250

Some Ford E-250 owners report experiencing shifting issues with their transmission, particularly needing to let off the gas to shift from first to second gear. These problems may stem from various factors, including the type of transmission installed, which can influence specific issues. Common concerns reported include torque converter clutch application in second gear, a lack of power after the 1-2 shift, and diagnostic trouble codes (DTCs) such as P0742 and/or P1742. Additionally, some owners find that low transmission fluid levels contribute to these shifting problems, while un-commanded torque converter clutch application and faulty sensors or solenoids can lead to delayed or rough shifting. Overheating of the transmission, especially during heavy use or in high temperatures, is also a noted concern. Regular maintenance and prompt attention to these shifting irregularities are essential for maintaining smooth operation of the Ford E-250 transmission.