Do I need to clean my windshield drain run offs....not even sure where they are. But I notice during a light rain the sound of water trickling........I assume its working its way down through the drains.....if I am the only one hearing this sound then I will hunt down the drain holes and shop vac them.......I dont think I hear it during a heavy rain because its so loud when raining.
2004 LS430

 

It could be - tough to say since I have not heard a trickling in my own cars. The front two should be easy - but you need compressed air to clean them out. The rear two are hidden under the sunroof and headliner - from what I can see - very tough to clean them out. I figured there would be a day when the dealer is going to have my car for some reason and that is when the rear drains can be cleaned out.