[tmonster]

I beleive there was a post about this before....If I recall they said if this happens at idle its not a big dea.l Mine has been doing it for a year now and i had my battery and alternator checked out at an autostore. Sumtimes when u have your defrost on, the AC compresser will turn on and that will cause fluttering too...along with your rear defroster. I'd say first step if your worried about it is go down to advanced auto and have them test your battery and alternator, its usually free.

I'm still amazed my alternator is good at 134k