2014 KIA RIO LX/ CODE P0734/ Scotty, Big fan here I’ve been watching your videos since I was 18 (I’m 27 now), anyways I have a Kia Rio LX 2014 that I bought for $3000 w/ 60k miles on it but it already had a little transmission slippage (Engine wise the Kia Rio is okay no trouble and fully serviced). I had a Mazda 3 & it shifted like a dream but out of curiosity I changed my transmission oil at 230,000 miles and failed shortly after. My Kia Rio is currently at 97K miles (no transmission service that I know of yet) and I don’t know if I should service the transmission or just ride it till the wheels fall off. I hope you read this message and have a wonderful new year! Looking forward to read a response from a true expert like yourself!
P.S. I know Kias are not the best but for 3k I couldn’t refuse it almost brand new I can even show you pics
See the following links for information on P0734:
https://www.carparts.com/blog/p0734-code-gear-4-incorrect-ratio/
https://www.obd-codes.com/p0734
See the site FAQ for details on changing transmission fluid.