Hey guys, I am new, so first off hello. I am currently having issues with my mail route XJ. I am able to start up my jeep and drive it (shifts fine) until the jeep warms up to normal temperatures. After it gets warmed up, the transmission starts acting up. If I have to stop at a sign or a mail box and try to take off, the transmission acts as though it doesn't want to take off in drive. Once it does this, I am a sitting duck. If I shut it off, it will not engage into gears (I can move the shifter through the gears, but it will not take off). I can let it cool off and get it to go again, but once it gets warmed up again, same scenario. The first time it did this was on my mail route last week. So that night, I replaced the transmission filter, and all new oil and I thought it fixed it, but it acted up again yesterday. Anybody ever had this problem? Thanks Trevor