my 93 f150 is having more and more issues.

so when i said that the blinker didnt blink on the left hand side... well when i turn the headlights off they work both ways. but with the headlights on left hand side doesnt work. also i dont think the brake lights are working. then the passenger side brake light keeps burning out. i need help please this is my daily driver.

 

Check ALL grounds, especially to the body from the battery.

 

i found the issue it was the trailer light plug in . my light bar is all coraded so it was making it not work right .