04 explorer
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Joined: Jul 2005
Posts: 11,931
Likes: 180
if it starts at 5 mph and gets louder as you go, and when you back off the trottle it still does it, then its a bearing. Most common would be wheel bearing. Least common would be piniion inside the differential..... NOW if it starts out slilghtly after 30 MPH, but you really hear it about 60-65 MPH, then back off the throttle and see if it goes 100% away.. IF there is NO noise when coasting, and the noise seems to also go away when you get up to 70-75 mph, then its probably gear mesh noise... which one ?
Hotshot
Joined: Jul 2005
Posts: 11,931
Likes: 180
