Recently acquired a 1984 Pontiac Firebird Trans Am. Driving it on the way home, the driver's side turn signal would stay lit when used, and the turn signal indicator would also stay lit. The passenger side indicator would blink normally for both.

I knew someone who gave me an out of the box flasher unit. I changed it out from the old one. Now both exterior turn signals flash like they are suppose to; however, both of my dash turn signal indicators will not light up and blink. I do hear the click, but no lights.

Can anyone help me diagnose?

Thank you for any assistance.

 

sounds like turn signal switch assembly wear/failure

or flasher socket wires problem, loose wire/socket

good luck

 

Looks like the driver's side turn signal needs to be replaced, it's a lot dimmer then the passenger side...could this be the problem?

 

The turn signals run off of resistance. They want to see X amount of voltage across the circuit, and if it doesn't, they operate funny. If one bulb is dim, definitely try replacing it. If it stays dim with the new bulb, then you might want to check for shorts, other burned out lights, anything.

 

Ok, so now that I have my car street legal I was driving down the road for a test, and my passenger side indicator started blinking normally. My driver's side still dosen't show up at all. Thinking...loose connection or burnt out bulb??

 

Check for a bad ground. Quickest check is to run a jumper wire to a good chassis ground & connect to the light socket. Test your signals & bet this will cure your gremlins.
Good Luck,
COrky