Hello guys ive got an 86 f150 and my turn signals are not right.
1. When i turn on the head lights they stay on bright if i click the floor switch to dim they shut off
2. When i turn my head lights on the right signals work but the left on just brightens up and stays on solid.
3. When i turn the head lights off the right signals work and the left signal lights all the lights up i guess the four way it makes since that way. If you have any help please let me know thanks

 

Check the ground connections for all bulbs.

Strange behavior like this is almost always a grounding issue, especially with any circuits that have dual filament bulbs - headlights and stop/turn.

 

Well where would i check that at sorry im 17 turning 18 so i dont know much but am willing to learn

 

My 85 is somewhat like that if I don't hit the floor switch just right it will turn mine off but I just hit it again real fast then there back on and my signals won't flash when I'm holding the brakes

And Congrats on being another young guy with a old truck I'm 19 I kno what its like to not know how to do sumthin on your truck and you will definitely learn a thing or two from everyone on here

 

Well hey no worries about my "alarm" accidently going off haha and the electrical is going to be easier than the newer vehicles

 

Black is the color Ford uses for all ground wires, trace black wire back to where it screws to metal.