Trans going to neutral on 3/4 shift

[CIverson]

I snapped my input shaft a few weeks ago. Truck went to Goerends, and after the rebuild, when test driving, he found that sometimes the truck would try to shift to 1st on the 3/4 shift, but the VB won't let it go to 1st, so it goes to neutral. Then if you let up it shifts to 4th.



From what I've read and what dave has said, this is an electrical problem, as the computer is calling for the downshift.



Dave is trying to diagnose the problem and find a fix, but I want to reach out to everyone here and see if anyone else has found a fix, as I know this is a problem on other trucks out there.



BTW: I don't believe this is the fault of goerends at all, and I don't want to anyone to mistake this post as anything like that. I know it is in VERY capable hands.

 

[TCDiesel]

Have Dave call us... I have ran into this Before ,Do you have the commander install With His VB.

 

[CIverson]

Have Dave call us... I have ran into this Before ,Do you have the commander install With His VB.

The commander is not hooked up at this time. I think he said he is going to be gone today, but I will leave a message for him to call you.



Thanks