Transmissions and Drivetrains
Ford Focus
Chevy Silverado

What causes a Automatic Transmission not to shift from 2nd to 3rd or overdrive in a 1998 Chevy Silverado?

User Avatar
Wiki User
February 16, 2011 3:02AM


the vehicle speed sensor can cause this problem or it can be the thermostat.i had the same problem and it worked for me.