I know go 80e yayaya. I didn't plan on boosting when I made the choice. I thought I was safe, even chuck at Flt said it will hold but for how long who knows it depends on driving habits.

Well it's stuck in third- from 0mph - you let off the gas at higher speeds it acts like it goes into neutral.

Some ******* cut me off and the truck was in the middle of shifting, I saw 7-8 psi when I hit it, well it stayed in that gear.

I do have reverse

So I have a yank sc3000 I have yet to install- I'm going to send this off to get rebuilt and then sell it if anyone wants it. Make offers bad *** trans- I'll even throw in my current 3200 stall.

Who wants to guess what brokeded

 

Sounds like the computer put the trans into limp mode(3rd gear only). Read, record, and clear the DTC's and see if the trans works. It may be a simple tuning issue.

Be sure to post the DTC info here.

 

That would be sweet!! Didn't know the truck had a trans limp mode- I only knew Allison trans did

I'll get back to ya on what I find out

 

P0757 shift solenoid stuck on

Damn- hopefully there's nothing broke the lodged itself inside of it- trans only has 900 miles- solenoids are 12k max miles (did a refresh before blower)

 

What did you replace in your refresh?

 

FLT did it
Vacuum mod delete
5-gear planetarys
70e output shaft
3/4 clutches replaced
Valve body mod for 2-3 shift