I have a 69 coronet r/t. I have a problem with the pass. brake light and turn signal. If I have the lights on I have tail lights left and right. When I hit the brake or use the turn signal the pass. side doesn't work? I can't seem to figure it out I need some advice. THANKS!

Try grounding the light housing... most times there are probems with the lights, it's ground problems.

the pass brake light and TS light is the same large filament in the bulb (small filament is the tail light). You're saying the pass taillight works but the pass ts/brake light does not? (1) Check the bulb which I'm sure you have done. (2) have someone hit the brake & see if the round nub contact at the base of the bulb (the one for the large filament) is getting fire (3) as said see if the socket is grounded (a jumper wire w alligator clips on each end to connect the metal socket to a KNOWN GOOD ground will ans that Q. Go Big Red.