I remember mine doing that too when i was putting a new stereo in. I'm not sure if the clips you guys are talking about are right there below the radio, but a clip came loose off of mine and I couldn't use my bottom gears. I didn't try to drive it, just tried to put it in fourth to get it away from the radio and it wouldn't go into gear. Put the clip back, and worked perfect. Working when cold but not hot stumps me. No clue