Hey guys, my 1994 4L60E has twice in the past two days while driving slipped, almost as it is in neutral, you can rev it as high as you would like and it won't go anywhere. Once you slow down it will drive but won't shift out of first gear. When I shut it off and re-started it it made a slight clunk when engaging into drive. It continued to drive in first gear to my buddies house a mile or so down the road where it sat for 5 minute while I used his phone. Started it up and it drove fine. One of my friends said the 2-4 band was bad, or the solenoid could be dirty inside. What do you think? Thanks, Christian