The transmission stop working . The car didn't want to go forward nor on reverse. we bought a transmission from a junk yard. it worked perfectly fine, but after a few days it started ding the same thing as the previous transmission. we changed it once again. but this time it stuck on Neutral. It didn't want to move forward or reverse, is it a sensor? or is it the transmission. i would gladly appreciate it if you can help me out.. thank you jose R garcia