When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
sounds like you might have air in your radiator/cooling system. Check your fluid level, when the car is cold pop open the rad filler cap and close it tightly again. The car will repressurize the system and should make the sound go away / reduce.