Trans issue??

[08Harley]

I have a 08 job 2 build date 11/07. i only run my truck on a diablo 80 tune, but sometime in 1 to 2 and 2 to 3, when it shift the trans slipps it only happens at about 3/4 throttle some time it slams alittle. does not fell the clutchs are slipping, and it rarely happens like 1 in 20 times. any advise or idea would be great so i can atleast know where to start.. truck has 193 k thanks for you help

 

[08straightpiped]

Yeah get rid of the diablo sport and get a custom tuning device like SCT, H&S, Spartan

 

[08Harley]

oh for sure. i just hade a broken back so i been saving my coins and i already hade a diablo i just run it for a few extra ponies tell my dpf comes off. i got it tuned down to the mildest tune now. just wondering if anyones knows about that trans i was told my truck was a job 1 so i though it was the tcm but when i personally looked into it turned out to be a job 2 so i am at a loss on where to start?

 

[Super08Duty]

Start with a custom tune and a trans fluid/filter change. You'd be amazed at how much custom tunes help stiffen the shifts.

 

[Mark Kovalsky]

The place to start is to remove the tuner and disconnect the batteries. Then drive it to see if it is better. The adaptive software may have learned into a bad spot, and a tuner can make that worse.

 

[08Harley]

Awesome.. once it thaws here a bit today. i will go try the disconnect. thanks again