2010 chrsyler town and country limited. will work fine for a few hours then go into limp mode.

error codes

P0792
P1790
P0733
P0734

I had a dealer change out one of the solenoids and fill the tran fluid before getting these codes.

I called a few tran shops and they told me I need a transmission rebuilt. I told them that maybe I need a speed sensor but my speed and RPM gauges work fine so they said that's not the issue.

am I going to need a new trans?

 

normaly it's not a problem change the valve with out reset tramsmission . Why did you change it ? was it leaking ??
If not how did the small filters in the valve port look like ?

 

I have heard of problems arising when people have a flush and refill done rather than dropping the trans pan and draining and replacing the filter. Can you clarify just what you mean by reill the trans.? How many miles are on your 8 yr old van? And also response to the previous post about why this work was done prior to current situation would be helpful, so we can get a good "picture" of what is going on.