Im in harrodsburg ky.

 

im with Miller...sounds like rpm governer comming on before trans is performing said shift???

 

Are all the upshifts clean/firm at various throttle openings? You also said valve body was it replaced or a shift kit put in? Lastly did you get any sort of a warranty from the guy who built it?

 

I recently bought mine with a built trans and it is doing the exact same thing I have tried adjusting the cable and it only got worse when I adjusted it so it is maxed out in the position that I have it in. NO warranty for me since I didn't have the trans rebuilt

 

So your haven the Same problem wccorne ? Im trying to get to the bottom of it.. I'll let u know soon i find something out ... im still hearing that has to do with the ECM .. even JIM jessup said there a program to tune it but he dont wanna mess with it or have time..

 

i agree w/those saying the tv cable is not set right.when i got my trans done i did the removal & istall myself.the trans shop instead i bring the truck to them& the first thing he did was check & adjust the setting for it.if it's not set right you could burn up the clutches in no time because the line pressure wont be correct.sounds like miller boyz is familiar w/it. be good to have someone else look at it.