[Deadrick12399]

I have a 2012 hyundai santa fe 3.5l fwf that no matter what speed I'm going at the rpm gauge will bounce it'll just drop then jump right back up it drops about 300-600 rpm then bounces right back sometimes only only once sometimes multiple times in a row never happens when I'm stopped or accelerating only when I'm decelerating no particular hard shifts however it will go into 6th only going 40 mph. I did just have battery drop down to 9 volts because of a faulty alternater got the alternator replaced and battery charged and tested good any ideas or thoughts would be appreciated

 

[Carfixer007]

TCC is on and off.

 

[Deadrick12399]

So I put in 5 th gear with shift tronic going down a hill also (edit: it only does when I'm going down a slope) and it still did it would still be a transmission I do have a bad wheel speed sensor idk if that could cause it