for you guys that know alot about trannys......i have an automatic

when i went to the track last nite, tranny shifted nice through 3 gear...at the top of 3rd gear around 5800 rpm, it hesitated before going into 4th...and unfortunately it is right around the traps, so my trap speed was affected. i had a total of 3 runs and it did it every time in the same spot..Is my tranny slipping? the night before i did the 3 step fuel cleaning process, put a udp on and bored out throttle body...could this have affected it? i have no clue so any ideas will be helpful.....Cory..that tranny is lookin real good about now....

John

 

Why would you not turn overdrive off at the track??

 

mmmm maybe it was shifting into 3rd....i cant remember....in any event, i dont think having overdrive on or off makes a difference

 

Well, if it's shifting into overdrive, of course it makes a difference.

 

yes,true.....but still there is the problem of the top of the gear hesitating...can anyone tell me what it might be?