Originally Posted by X5Dawg

MaX5, when you say they are flickering, does this stop after a few seconds or is it continuous??

I just installed a set on my '01 fogs (H3) bulb and here is what I have encountered. The initial set went in and the first few times lighting them were uneventful (worked fine). Then I started having the flickering issue. Sometimes after flickering they would eventually fire up and stay on, sometimes only one would. I also had a few times where I would turn them on while in Park (inital startup in the morning) and then when I applied the brake to put into gear, one of the bulbs would flash like a camera and then go out. Even had once or twice where the fogs did not fire up initially, I got down the road a little and tried again and they actually tripped my hazards and my interior lights. Finally figured out I had a bad ballast and sent it back for a new one. Installed the new one and I have not had the brake light/ hazard issue, but I still have times when they will not fire up initially.

Not sure if this might be the issue, but it has been really cold here lately (under 35F) and I have noticed that they seem to fire up better once the motor has warmed up (which my have in turn warmed up the ballasts).

I will have to try lighting them without the motor running to see if they work all the time with no issues - will let you know.

One more thing, I am not using any relays or harnesses supplying power to the ballasts - mine are just hooked up to the factory wiring for the fogs.