i get same noise!!!!Mine doesn't go away lol....gotta check for loosen bolts, hopefully that's it

 

i have been hearing a slow 'boiling' sound from the pass. side lately, almost like turning a 2litre bottle upside down and letting it chug out, but not that noticable. i checked and filled my coolant, as i thought maybe that could be a possible culprit. but i dunno, i havent really tried to pop the hood and isolate the sound yet. so well see, my days off are comin up so ill tinker and listen