Hey All,
May not be 3.0l specific but...
I was under my car today and saw what looked like and was a loose nut. The nut on the opposing side was also loose. These nuts are on the bottom of the engine mounts that connect the mount to the chassis.
These were so loose i turned one about one full turn and it came off the other was threaded on a bit further but still finger tight.
CHECK YOUR ENGINE MOUNT NUTS
You have been warned
Cheers
Brunsy