Dear AL Experts
my mazda familia BJ5p 2003/auto, giving vibrating sound, drrrrrrrrrrrrrr, which comes under carriage / silencer bar area, only in cold engine (first start every day) and most of the time after shifts to gears (Some times when "P" position as well) This will go off after 10-15 seconds
there is no feel of vibrating the steering wheel just drrrrrrrrr sound from under carriage
car was checked by one good garage person as well as a silencer repairing bass but both could not find the issue
looking for you experts advice