Turn signals not working

see answer on 1st question,turn and hazard are the same flasher,replace it.

I have 92 lumina euro 3.1l V 6 with the same issues along with many others lol. I was told it's the turn signal switch Behring the steering column, it's about 80 bucks and was told it's not to difficult. Hope this helps. I haven't addressed that yet because my coolant light comes on and my temperature gauge spikes within 5 minutes and it idles funny when it starts, also my car hesitates when I put it n drive and then dies at stop sign if I make it that far before the gauge spikes. It used to spike and then when the engine would actually start to get warm the gauge would go to normal ant run great like nothing's wrong , but not anymore. I replaced coolant temp sensor flushed radiator and replace temp sender switch and still doing same things. I'm at a loss if you or anyone can help I'd great appreciate it. Thank you