Gentlemen, I am happy to report that the 4 runner is working! Friend dropped the pan and there was a lot of sediment on the bottom and especially the filter. Cleaned out the pan, new transmission fluid and filter. Initially there was an issue with the gear not engaging in first from a stop, while all other gears were perfect. He reset the sensor ( or something) and now all gears work better than before. In a month I was advised to change the fluid and filter again to make sure all the remaining junk is gone. The problem seemed to be a really clogged filter. He thought it might have been additives or something. He just knew it was unusual. Thanks to all who assisted, especially WillHickey foor suggesting the filter.:thanks::thanks: