Please need help…

I took my my dodge durango for transmission problems. They told me it needed a new one or rebuild. So I went ahead and got rebuild . And a week into it out it starts grinding. I take it back in they said because I put new tires wrong size it set my computer off to cause the problems of it grinding . Well weeks later starts grinding, slipping, delaying, and not shifting I took it to a dealer for proper diagnostic. They hand me a list of failures with transmission and a bill of close to 9k . So I took back to transmission mechanic and again computer rebooted and working fine . I started to feel slipping and slight grinding again . What is going on with my durango 2012 ? Please in need of your expertise help…

 

Need more information! What engine size, the vehicle total mileage, what tire size did you change to and what was actual rebuilt on the transmission.
Do you have any codes or messages on the drivers display screen, check engine light (blinking) any other lights on the dash?

 

Dodge durango crew 2012 3.6 224 k miles
P265 60r 18 factory

New Tires265/60 r18

Rebuilt transmission and converter installed , flush cooler lines clear codes releam and new shaft .
Week after transmission rebuild .

Codes

Po732 gear ratio error 2nd
Po730 incorrect gear ratio
Po731 gear ratio error 1st
Po734 gear ratio error in 4th
Po733 gear ratio error in 3rd
Coo78-86 tire diameter signal invalid
B1d4a-2a memory switch input stuck
P05579-00 speed control switch 1. performance


As of today
Lights on Dash are for
ABS
and fuel cap .

But it's starting to slip , grind delay and not shift at some point. I turn off for it to reset to start functioning back . But come to think about it . That's how it ended up at the transmission place in the first place . All the same problems minus abs code.

 

Was the torque converter replaced or just inspected?

 

I am assuming the converter was replaced . The transmission shop keeps telling me its the tires that are making the computer go back to slip mode but dealer told me that had nothing to do with it . I'm wondering if I have a bad censor or bad computer program .

 

From what I was reading the TCC can produce most of these DTC P07xx issues. It could be a bad TCM or a few sensors seems highly irregular with all the DTC you are getting. This would need to diagnosed be a qualified service shop with the FCA wiTECH or equivalent testing equipment. If you think it's the ABS you can test by disabling ABS if you have a tuner from Diablo or HP Tuners. The button on the dash doesn't actually fully disable the ABS. Sorry I could be much that help.