First thanks everyone for replying to my question.
Hern, that's exactly what mine was doing (rapid flashing) plus a dash light came on once in a while (kind of looks like a set of headlights). Bigrick, I missed your earlier post in my search but I started to do as you suggested when I noticed the assembly was slightly ajar at the bottom so slapped it with the palm of my hand and tried the turn signal and it works fine now. :D I'm thinking it's just the dirty contact theory but I'll wait until it does it again and then take the assembly out and check everything now that I know how to do it. ;) Thanks all.