2005 yukon denali 6.0 not shifting pass 2nd

What is your question?

While driving in automatic going from 1st to 2nd is ok, 2nd to 3rd doesn't always shift. If I let off the gas pedal it (sometimes) jerks into 3rd (lightly). Replaced fluid, filter, throttle body w/ throttle position sensor, speed sensor, also NO scan codes found. 250k miles tranny was rebuilt at 189k miles. Any ideas?? Or just dump it? Not sure if it's just in "limp mode" please help!!

What makes this problem better or worse?

New throttle body made it better, but problem still exist

How long has your 2000 Chevrolet Silverado 1500 had this problem?

2 weeks