haha sandman, your funny. I will confirm this since the second link you referred was my post. YES this topic is the exact same issue as mine. I was focussing on the gurgle, but the swishing water noise is directly related to the gurgle. They are caused by the same thing as I learned, air in the cooling system. I must work on bleeding my cooling system, as should you OP.
1998 ZJ Laredo, 4.0L, 2WD, it's boring