Well I was at the track today... and well it takes off fine.... and when shifting from 1st to 2nd it sounds like the engine and trans stop.... but the truck keeps pulling and its not a very long skip..... then from 2nd to 3rd its about the same
but from 3rd to 4th it skips for atleast a half of a second..... What could be wrong..... is it in my Tune?????

 

are you sure it isn't tq management? then again, when i felt tq management it wasn't nothing like that. it just seemed like the engine stopped making power and the tranny was holding back it's shift. it didn't feel like that did it

 

Yeah i mean it totally skips and then shifts.......It revs stops and then shifts.....

 

My TQmanagement is 100% Deleted!

 

have you checked that it is 100 percent deleted? reason i ask is because 02Denali had problems with a tuner that said he had deleted 100 percent tq management and never did. Granted, this may not be the problem. I hope your tranny isn't going south on you. Does it feel like the truck falls on it's face then stumbles to shift and finally does?

 

No it doesnt really lose any performance.... its just skips.... except the 3rd to 4th... it stops pulling for like 1/2 sec....

 

sounds like dfco fuel shutoff

mine did the same it would pull up to 5900
then just hang for a sec then shift
Kinda sounded like a stickshift

my shifts were at 6100 and it was 5900
so when it got to 5900 tps fell down to 36*
and that let the shift take place
due to the lower tps

not sure but it
maybe something worth having them double check

 

he's right, i didn't think about the fuel shutoff. it could be thats your problem.

 

What exactly is a DFCO... and is this problem in my computer tune??

 

oh and thanks alot for the info