yesterday i noticed my passenger side foglight was out when i had them on, drivers side was still on, so i turned them off then back on, passenger side came on, then went off again a few minutes later, i repeated the process once or twice then just left em off. then today to do a test, i just went out to the car and turned on the fogs, and in less then 5 minutes, the passenger side fog went out, and u could tell that the ballast wasnt working, because i couldnt hear the little buzzing that you can hear when u turn it on. so i turned the fogs of and on again, and this time, i left em on for over 20 minutes, and it stayed on the whole time. im thinking maybe just a faulty ballast, but being that the passenger fog one is the hardest of the 4 to get at(where i have it anyway) i dont wanna replace it if i dont have to. any one have any tips?