so i was having trouble with my tranny with it shifting out of o/d well i got it rebuilt and put in. i am now having the same problems with my tranny as i did before but this time i got a code p0734 which is a 4th gear ratio code. it also says transmission speed sensor so i went out and swapped it but it still is doing it any suggestions guys?

 

Hmmm... Could be a internal PCM issue or a wiring fault somewhere which would feed the comp bad info

 

it never ends lol but hey it shifts better than before until o/d any way of checking the things u said

 

P0734 Gear 4 Incorrect Ratio

Wonder if that implies the PCM is commanding 4th gear, but, not seeing the RPM drop it thinks it should?

Does your truck actually shift into fourth? TCC engage?

 

Well it does shift into overdrive sometimes not always o btw I just went for a drive and I was shifting manually with od off when I get up to the rpms for od to engage and push the button so overdrive is back on it doesn't shift but does make the rpms climb 500