Recently my fog lights went out so I changed the bulbs and still they wouldn't turn on. So, I changed the fuse for the fog lights and they worked. However, after I drove with them on for about 35mins they went out again. I know the bulbs are brand new and the fuse may have blown again, I am not 100% sure cause I don't have a tester at home. Does anyone have any ideas what to do or what I should check to see is not working?