Issue during relearn with Spartan 250

[Redram99]

Hi
I have had the Spartan 250 on my truck for about 3000kms.
I then thought I would go back to stock no dpf. That sucked and a 1/2 day later I was reloading the 250 tune.

While I was doing the trans relearn I got to the fun part of WOT from a standstill and slightly after the turbo spooled and the truck really started to launch there was a loud bang somewhere in the power train that shook the whole truck and scared the crap out of me. I kept my foot in it and it accelerated all the way to 80mph.

I am thinking it was either the tcase or a hub cause just before I did my wot run, I had just put it in 4X4 and I am thinking that it wasnt quite locked in.

I successfully did 2 more runs without issue and a brakestand for my father in laws benefit without any issues.

Is there anything I should check or does anyone have any thoughts?

Thanks

[jdalhaus]

I wouldn't worry about it unless it happens again or keeps doing it.........

[Kodiak diesel]

Wonder if doing the relearn is that important for the 250 and under tunes. I've went back and forth between the 250 and 210 and never did the relearn due to weather here, never have add any real problems.

[Redram99]

Mine shifts like a POS if I don't do the relearn.
Doing the relearn makes it shift much smoother!

[mattyl]

i have herd it shifts better but i can't do a relearn till i get better tires ... when i get to the end i punch it and just break my dually loose for aobut 60 feet... not that is a bad thing..

[08stroker250]

Originally Posted by mattyl

i have herd it shifts better but i can't do a relearn till i get better tires ... when i get to the end i punch it and just break my dually loose for aobut 60 feet... not that is a bad thing..

Is your truck 4wd?

[mattyl]

yes it is... why, does that make a difference

[colfaxent]

Did you have the hubs in lock or auto position? I would use the lock setting to avoid a hub from not being entirely locked in and causing this bang. JIM

[08stroker250]

Originally Posted by mattyl

yes it is... why, does that make a difference

Because you can put your truck in 4wd high for the relearn and keep your tires from burning up when they light up during a 2wd relearn.

[Redram99]

Originally Posted by colfaxent

Did you have the hubs in lock or auto position? I would use the lock setting to avoid a hub from not being entirely locked in and causing this bang. JIM

I'm thinking a hub may have been the issue. It seems to be holding together so far.... with no additional noises.

I am down to running the 210. My truck seems to like it a lot better than the 250. The shifting is near stock.