left tail Signal light won't work but the headlights on
 

wonder if some one can help me to know why the left tail signal dont work but if I turn the light all works, also the headlight left and right works. could be the socket connector?

What year model truck? Mine and my dads f150s(mine 01 his 99) have had problems with turn signals. Mine was fixed today haha. If it is that year model it is the actual modual in the steering column. After the steering column being tilted alot the plugs inside wont touch and create the signal(usually after years).

the model king ranch 2005

Ok, I dont know anything about those but if it continues and your right goes out I would try to tilt the wheel up and see if they work in that position(I would try that now on the left one). If they work in that position, I would say look at getting the modual in the column replaced. But like I said I dont know anything about the 04+ so hopefully some other members will be of more help.

Thks men for your tip

try another bulb yet?

Your welcome. I know how frustrating it can be haha.

Does the front turn signal on the same side :

1. Work without the headlamps on ?

2. Work with the headlamps on ?

Are you sure the turn signal is what is flashing, not the parking lamp ?

No, only the signals from the front of left side, the rights side works fine all of them

2. Work with the headlamps on ?

Yes but the signal from the left tail light dont work only the fronts inside the car the signal flash fast...

Are you sure the turn signal is what is flashing, not the parking lamp ?
Yes is the signal, the bulb is brand new

So the front works all the time, and the rear does not work at all ?

Bit confused with what you are posting here.

From what I got in the first post:

If headlights are on:
-Front right works
-Rear right works
-Front left works
-Rear left works

If headlights off:
-Front right works
-Rear right works
-Front left works
-Rear left does not work

But then in post #9, you're saying the rear doesn't work regardless of the headlights being on?

If you step on the brakes, do both rears light up when you have the headlights on? With the headlights off?