ok i just wanna ask a simple question what would make a built 48re when you hit the passing gear go from instead of third it goes to second gear for about a second or two then back to third like it should ?im sorry one more questionlo. also in the lower rpms the rpms are revving up just a hair the revving back down like the torque converter is locking and unlocking?

 

Anyone? Someyone has to have had a similar problem perhaps?