I have a 98 SS with factory tune and a TCI SSF converter that has been in for a few thousand miles and been fine. I took it on vacation and on my way back the converter wouldnt lockup. It would lockup one time for only a few miles then unlocked. Later i got an SES light and a vibration. Any suggestions on my problem? Thanks

 

Sounds similiar to when my converter and tranny went bad.

I would get it to a tranny shop before you cant drive it anymore.