toms.abpg

The diablosport tunes are not custom tunes. They are preset tunes similar to Edge etc, Im working with Diablew on building a custom tune now. Black Bear did my 2012, did a great job. TM is to prolong the life of the transmission, it just cuts back power during shifting to avoid excess wear and stress basically. Ill post on my experience with Diablew tomorrow or the next day. The first tune i got from him this morning, wasnt good at all..

I think it is still in v4 when this happens. But either way it doesnt seem like a brand new truck should do this. Maybe im wrong. I havent talked to the dealer about it yet because it seems they havent been much help on these new model trucks for anyone else.

I Purchased my 2015 silverado z71 crew cab a couple months ago, so far i love the truck accept for one issue that shows itself every once in a while. USUALLY while turning and acceleration lightly at the same time ( lugging the motor pretty much) ill get a very noticable shudder right before the truck FINALLY decides to downshift. Has anyone had a similar issue. Im going to drives my buddies sierra tomorrow and see if i get the same shudder. I have 3600 miles on this truck so i dont think its anything to do with the "adaptive" transmission learning cycle. Ive heard a custom tune can resolve issues but i really hate to do that on this new of a truck, nor do i have anywhere within 400 miles to get it done. New to the forum guys, hope to get some responses, this is my first GM product. Switched from a 2008 tundra with 245000 trouble free miles. Hope i dont regret this purchase