Rattling noise from under the hood

I have a 2005 Ford Explorer with 85000 miles and there in a rattling noise from under the hood, the transmission slips randomly and sometimes it just goes dead what could cause these problems are they linked?

When going in reverse the car jumps and the transmission slips changing out sometimes, the rattling noise is loud, but no check engine light nothing, sometimes the car just cuts off but cranks right back up like nothing is wrong