Like the title says I took my 08 f250 to the dealership the other day and needless to say they can't seem to figure it out but my cruise will not work no light or nothing just doesn't do anything they checked brake pressure switch and all still nothing any help would be greatly appreciated thanks guys

 

Cant remember which one, but its one of the sensors on the master cylinder that goes bad and causes the cruise not to work. Mines going out now and cruise is intermittent. I think you can pull the plug off and if its wet with brake fluid that's an easy way to tell if its bad.