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  1. Strange helicopter/fluttering sound when I start my car

    L31 2002 - 2006
    My Altima 2006 2.5S has been making a strange fluttering-type sound (coming from under the hood) when I start it up, though it goes away in 5-10 minutes. No other indication that there are any issues. I recently got an inspection at Firestone, they didn't find any problems (though this was...
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