Aug 19, 2008· Ford F150 Grinding Clunking Noise in Front End. In a matter of 30 miles it has happened 3 other times and it seems to occur between 25 MPH 40 MPH. As I slow to 5 MPH 10 MPH, the scraping noise disappears when something seems to engage (clunk/pop into place). The truck drives fine otherwisegoes into reverse, accelerates, etc.