What cat140H gear shift not working in order if I start with move with if change from high to low and vice versa don't change speed move with the start with it and read fault code 030 0271 036 0100.03 0545.05 0274 0267 081 0669.02 0177 code how to fix it
Try fixing the 0669.02 first. That is a transmission input speed sensor Code. Also post a full machine Serial Number please.