mass-hole wrote:
Mountainman wrote:
The Eco tune is a bit annoying on big grades, but I usually only have one to contend with. If you have nothing but big grades I can totally see something else being better. If you're always over the lock up speed of the stock tune then it may be OK.
You think the fact that mine is programmed for 32's is messing with the shifting?
I think the tcm shifts at a certain speed no matter what, so if being programmed for 32" tires throws off your speedo then yes. If you are on smaller tires than it's probably shifting at a lower actual speed.
Yes I climb hills constantly and it's constantly gear hunting. It will lockup in 5th but won't have the power and will kick down to 3rd. then it has more than enough power so I let up and it just shifts back to 5th locked. It will repeat this cycle over and over. I either have to stay below 59 mph to keep it in 4th or speed up to like 65-70mph to get some extra HP.
Lol, yeah, that shifting back into 5th versus 4th is a nightmare! Add the shudder to that and I'm saying to heck with it and setting cruise at 45 and crawling over the grade
I think you're right about the early shift, which I actually love for the mpg's, but if it's causing the TCM to get confused, then that won't do. I'm tired of the speedo being off by 5+ anyhow