I am having the same problem on both my 89 Firebird Formula and my 88 Camaro. The right turn signal does not work on either one. I have changed the bulbs and still nothing. On the 89 Firebird the hazards work and on the 88 Camaro when I engage the hazards neither of the signals work. I am stumped. Any help would be appreciated.

 

Turn signals have a seperate flasher unit from hazards - the one c ar might need a new flasher.

Did you check the side marker bulbs as well? They blink with the turn signals, and if either is blown, flasher might not operate.

 

is probably a grounded harness on one of the lights,i had a similar experience and the front was the problem because i lightly bump coming down from my driveway

 

How would I find out if it is the grounding problem?

 

some times is just rust inside where bulb goes and rust cause grounding or false contact so make sure the bulb is good try moving the harness at this time you have to have the signal on,do this to all of the lights related