My explorer recently started knocking loudly. It happens only when I drive my son to school in the morning. And the thumping only last a few seconds. It's conning from under the hood. Not sure exactly where though. The mornings are cold. Not sure if that matters. Almost sounds like there's a animal under there trying to get out but there's not. What could cause this?
Monday, November 18th, 2013 AT 8:21 AM