what would cause the converter to lock and unlock randomly? but it mostly stays unlock. i just had the trans built a few months ago and they drain the fluid and said the converter look good. iv replace the throttle position sensor and it has no codes. it was doing this when i first got it and read that sometimes u have to have the computer tuned and i had that done and its still doing but for some reason i dont think he was very good; just trying to knock out all the posibilities

 

3600
yank

 

that i dont know its was tuned when i got a h/c package

 

Swapped from stock converter to Yank SS4000. Didn't need a tune. Shifts and runs on lockup perfectly. May need to check for other problems.

 

sounds like the tune

 

ok im going to go get it retuned asap bc this is bugging and see what happens