Traveling along just fine when transmission starting spinning and van refused to go. Pulled over and let set a few minutes, started it back up and got the van going again. As it changed gears the van jerked 3 times and then stayed in 3rd. At home looked the issues up and was told it is in limp mode. Changed fluid, filter and read the codes, 700 and 733 mostly. The van will go 50, 60 miles an hour, but the rpms are up to 4000 and over. Have been driving it this way for almost 2 months now. I am afaid that the 3.3 might give up on me, strong motor though. Looked into input and output sensors, TPM and PCM but nothing has changed. Any suggestions as I do not want to nickel and dime this van to death.