no turn signals

Welcome, just talking about turn signals. Did you check circuits at turn signal switch while you were replacing switch? Sure would have been a good time. Here is a guide and some diagrams so you can do some testing https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester There is probably a multiwire connector under the dash close to steering column, for circuits going to and from the column. You can see wiring colors in diagram. Use testlite on proper wiring circuit, see if it is hot when it should be?

Larger diagram below, sorry they are in pieces. Please let us know what happens so it will help others. Cheers

ok i had a similar problem so i checked my tail light circuit board that i plug my lights in too and found them rusted and messing up the connection so i replaced both of them and now i dont have the problem and for your instrument cluster lights there is a connection by the flasher that is roughly about 2.5 inches long and one on the column one of the 2 might have come loose!

Great addition to this thread! Please feel free to help out whenever you are on the site :)

Cheers, Ken

i have a 83 K10 chevy and when i have my lights on my left turn signal wont blink the right one does and they both work when the lights are off i checked bulbs and they are all good and cleaned grounds but cant figure it out is there any help out there?

Having grown up back east where cars rust a lot, this problem is typical of losing the ground, whether at the bulb, in the socket assy, or even the ground to the fender and/or frame. The lights work without the parking light because they get a ground through the park filiment to another ground at another socket. That ground goes away when the lights are turned on.

So it started with a running light going out and now both running lights are out and eventually no turn signals are working. How can I fix this

does the flasher get power? are the bulbs good? ground good in back? poer going to all the bulbs? might be a t/x switch