Diablosport Forums

Hi friends
I have diablosport U7198
My car is avalanche 2002 2500 8.1 ....
My question :
I Hear hevy cleck sound when the gear change from 1 to 2 ... If I chose the ( Factor HP Tune ) then i change on the Parameters of Shift Timing 1-2 degrease to 25% or increase obove the 0% is that well finish the problem ?? thanks my dear friends ...

Shif ttime is already increased in the tunes, does it do this with the stock tune?

Hi mikel
In fact, I wait for you to answer ... my experience in the auto tuning is very simple, any way ... yes this with the stock tune ...
Thanks

what you are hearing is the slip yoke on your transmission, its really common with these trucks. I had the same thing with my truck.

read here:
http://www.gm-trucks.com/forums/index.p ... =slip+yoke

yeah, that's a mechanical problem with your truck, not a tuning issue...