On my 98 Ta with a stock 4l60e, is it supposed to shift into 4th at wot without letting off the gas a little? i had just recently put 3.42's in my car from 2.73's which means now on the top end i need 4th and it doesnt shift into 4th unless i let off a little. Thanks guys!

 

Get it tuned...

 

It's normal. They don't shift into 4th at WOT.

 

With the stock tuning the MPH for the 3-4 shift is generally set to high to acheive at wot. However tuning should take car of that

 

i didnt know it was a pcm issue but i have a nelson tune already and i have free retunes so now my question is should i, i ve read bad things about the tranny shifting into 4th at wot.