Has anyone ever experinced this?. The smoke comes out just beneath the steering wheel. I see there is a bulletin about strained signal wires on a 93 Lumina. It happens intermittently; sometimes twice a day, and it may not happen again for 2 weeks. It does it during the day and night. So it having the lights on doesn't matter. any help please ?? anyone.

take a peek at this thread for steering column smoke:

http://www.automotiveforums.com/vbulletin/showthread.php?t=440237&highlight=turn+signal

This happened to me. I took it in to get looked at and I was told it would cost $200ish to fix. They said my turning single switch burnt out. Eventually one time after it smoked, my left turning signal stopped working properly.

you've got a switch burnt out