I think the electrical contector is only for the TC lock-up solenoid, Overdrive solenoid, and ground wire. (dont take my word on this though, i've only done a shift kit on my truck. I'm not an expert. ) I think all the shifting points and firmness are hydraulicly controlled, unlike a Ford or Chevy where they are electronically controlled. If you were going fast enough to have overdrive or lock-up engaged then maybe there could be a chance that water had messed with the wiring or grounding. I would check to make sure the connector is on good and maybe through some dielectric grease on it... . Good luck.