I rebuilt my whole column a couple weeks ago it was a real pain in the ass and truthfully there are not a ton of great sources that illustrate how to take it apart and put it together. I would strongly recommend taking pictures as you take it apart cause it took me a whole day, also if the turn...
Have you looked at the turn signal lever itself I know how much of a pain it is to fool around in the steering column but its worth a shot, other than fuses, relays or the fixture it may be worth investigating the wires themselves, Rockauto sells a pretty good repair manual that has some very...
Try getting them to flash by taking out the fixtures and pressing the bulbs in a little, with the turn signal lever engaged, I had a similar problem and the actual fixtures for the turn signals had gotten loose on the inside.