Hey everyone, I need some help with my transmission. I have a 02 4wd blazer that won't shift from 2nd into 3rd unless I take my foot off the gas. I have changed both shift solenoids, throttle body positioning sensor (tps), and the vehicle speed sensor (vss). I am still having the same issue with shifting from 2nd into 3rd. If anyone has any additional advice I would appreciate it.