Have been fighting a shudder with this truck, it has 15k miles on it & has been in the shop a few times for it (still under warranty). What I feel, almost feels like a miss fire, but no check engine light. When driving at constant speed, occasionally I will feel something, like a random miss fire, and when slightly accelerating I feel it alot, 10-12 times a second. Trans fluid was changed, nothing, changed torque converter, nothing, had it in last week for oil change & they changed the trans fluid again, said there was a new fluid out. For about 200 miles it felt different/better, it shifted when I felt it should, & didnt notice the shuddering. Now today on my way to work, it felt like it was back to the way it was before the last fluid change. Somewhere I read this transmission is a "learning transmission". Maybe they reset something while it was in the shop & now has "learned" how I drive & is trying to adjust for it....????
So my question, is it possible that this is something electronic/PCM causing the shuddering? If so, can this be turned off so it doesnt "learn" from me....?
Thanks,
Scot