Ranger trailer proble

[Tholl]

Hey guys .
Having an issue with my brakes I believe. The boat really jerks on stops and starts. It never used to do this . Seems like there is no resistance against it . At the front of the trailer just behind the ball where the sliding bolt looking things are is where the noise is from. It is making loud noises and I know it's going to get worse . Is it possible there is no pressure in the lines ? Any help is appreciated .
Thanks

[Gregking]

[wiredog]

Have you checked to see if the master cylinder is full of fluid??? Wiredog

[Tholl]

I have not. How do I check that?

[Gregking]

Sorry about the huh, when I saw the post all it said was "here". I wonder how that happened. Weird. Back to problem

[Burr]

I'd check your brake fluid level as suggested. Usually there is a plastic cap on the tongue hitch that pops off and exposes the fluid fill area.

Are you having any issues with your brakes?

You may have to bleed the system.