3 to 4 stutter on built tranny

IOWA LLY

Yes, its really me
Feb 23, 2007
2,275
4
0
No changing turbos will not help.

You could log it and see if it is stacking converter lockup and the 3-4 shift on top of each other.

If it is stuttering on the 3-4 shift and the converter isn't causing it then it's a transmission issue.

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Teamvi

New member
Oct 26, 2011
333
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0
I currently dont have a tranny tune. I ll log it when i get home, tony said i shouldnt need a trans tune, whos tranny tunes do you recommend? Would a lock up box work?
 

Robby05

New member
Jul 25, 2014
498
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0
Spokane, WA
Just re-read this thread. Is this your truck? Have any clue what was done during the build? Only ran on a 150 horse tune. Reason I ask is when my trans was done I couldn't wait to put it on a max tune.
 

Teamvi

New member
Oct 26, 2011
333
0
0
I ve ran it on max tune but when i was testing it i only put it on the 150 tune and i normally run on the 100 hp tune for dd. I believe it has to do with the torque converter locking up
 

solidrunner

Member
Oct 19, 2015
48
0
6
Seatac, WA
Pretty sure my truck does the same thing. Evan, is there a TCM tune version that you would recommend? I had a buddy that works at a dealership flash mine with the latest update when I had him learn the trans for me.
 

DAVe3283

Heavy & Slow
Sep 3, 2009
3,692
249
63
Boise, ID, USA
You would get a lot more than a tune file going to see Evan. You can get a TCM OS online and just flash it in with EFILive without leaving your driveway, if that is all you want.

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ieetgluu

New member
Sep 27, 2013
13
0
1
You would get a lot more than a tune file going to see Evan. You can get a TCM OS online and just flash it in with EFILive without leaving your driveway, if that is all you want.

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I'm good to go, thank you