I have a 73 f150 ranger. The turn signals do not work. The hazards work fine. All lights are good. Flasher is good. Turn signal assembly new. Fuses good. When I engage the turn signals the break light on that side goes out? Any help would be appreciated thank you.

 

Im having the same problem,but it sounds like u may have wires shorting together

 

defiantly sounds like a short.. check your bulbs to make sure they are the correct model (I've put the wrong bulbs in before and gotten a similar situation)... and if they are you may have a wiring fault somewhere in the back...