Have a buddy who purchased an Excursion with a ton of mods, one of those mods being an Allison 6 speed swap. 1000 or 2000 not sure yet. It shifts so bad its horrible to drive. I have tuned/built many Allisons (and all the other autos) Am I able to access/tune this beast with my V2/EFI Live or will it require something specific?
It appears by the 10-12 ECM Codes that they simply ripped out the 4R100 and did not do anything in the Ford ECM to tell it that its transmission is flat out missing.. so its pissed off at the world. The truck has 70k in mods to the engine, tuned by Swamp "something" diesels and it hauls azz. What I think / feel is happening is the Allison TCM does not talk to the Ford ECM so they are both just kinda doing whatever the **@ they want. Full line pressure, lockup in 2nd at low speed, slams each gear like a bus. If I can get to the Allison I can tune it and make it a TON better. but..... can I?
Thanks peeps,
-RM