On a 1989 Chevy Corsica all the lights flash for hazards so why would the left turn signal go steady-on while the right turn signal flashes lights normally?

Answer 1

It turns out the problem was that a couple of bulbs on the left side were burned out (front left turn signal, one of the rear turn signal/brake light bulbs.) After replacing the rear bulbs, the signal would work, albeit slowly. Once I pulled the front left turn bulb (with the intent of replacing it the next day), the turn signal light went steady-on regardless even without moving the signal indicator arm. That problem also went away when the remaining bad bulb was replaced.