P1740 code on 02 ram, help?

RustyRatRod said

The first two things that are listed as causes are low transmission fluid and dirty transmission fluid. What "I" would do. Change the fluid and filter and add this...

https://www.walmart.com/ip/Lucas-10...edirectid=15627623884185762570310090302008005

That's about the cheapest thing to start with and it just might fix it.

Click to expand...

I never use any kind of additive in the trans as I worked in a trans shop for about 5 years and, you wouldnt believe what that stuff does to the seals inside. Swells them up like balloons and makes them spongy. I always say it was made to work with just trans fluid so if it doesnt there is something else wrong and, there is no miracle in a can...