Code P0740, still no reverse after changing solenoids

If this is the only code that you have then I suspect, we have larger internal issues if you have no reverse.

So, let's run through the testing shown below. Basically, we need to start by checking the fluid and pressure.

So here is a guide that will help with this:

https://www.2carpros.com/articles/how-to-check-and-add-transmission-fluid

I am attaching the testing and the process to check the line pressure because that is going to be needed in order to determine what the issue is.

Basically, I suspect we have a cut seal in the reverse circuit so let's start with checking this info and we can go from there.

Thanks

Thank you very much. That code went away but now we have this code: P1751.

Okay. That is actually not a good thing. The most common correction for this code is a transmission replacement. However, I attached the info below for this code. You will see it is pretty short. Replace the shift solenoid valve B and the AT clutch pressure control valves A and B and if that code resets, replace the transmission.

Please see the info attached and let me know what you find.

Thanks