I own a 1993 F150 with a 5.0 E40D that is experiencing shifting issues. The truck was functioning as usual until the following morning. When I engage the drive mode, the transmission seems normal but fails to shift into 2nd gear, causing the RPM to continually rise. However, when I manually select 2nd gear, it shifts successfully.
I don't believe the issue lies with the rear differential speed sensor, as my speedometer is functioning correctly. Additionally, I've inspected the transmission fluid, which appears normal and shows no signs of burning.
I would greatly appreciate any assistance, as I rely on this truck for work.
