My trucks transmission was rebuilt 18 months or so ago at the dealer.It has worked perfect for the whole 5,000 miles I have driven it in the last 18 months...Today on the way to town it bucked going into overdrive and shifted funny(WEAK). On the way home I was babying it and the check engine light came on.I pulled over and checked the fluid;It was all the way at the bottom of the stick but not burn't.The code is #P0748.It felt like it pulled out in second gear and has No overdrive. I looked up the code and it says;# P0748 Governor press Sol Ctrl/Trans Relay Circuit.Help me out fella's...I cannot afford a new Tranny right now..AGAIN