WHY DOES MY EXPLORER CUT OFF WHEN I PUT IT IN GEAR?

I figured it out. Turned out the torque converter was bad. Even though it was supposedly repaired by aamoco they ended up replacing the whole transmission with another rebuilt unit. Then when i put it in gear it jus puttered out and that ended up bein a fuse under the hood that was causing sum engine circuits to fail from firing. I hope this helps snyone with the same problems