OrangeF150
Club Member
2003 Mustang GT 4.6, just brought it home.I never owned a mustang before and noticed this weird reverb/flutter coming from the air box.Seems to do it in gear with foot on the brake.It will do it, then it stops for a bit, then does it again.I had a bud sit in the car and I put my hand on the air filter housing and it definatly coming from there.It does have a K&N filter element in it.What could it be?:headscrat
