Our refrigerator makes gurgling and some other noise but not all the time. Several times I got up to try and figure out where the noises were coming from. Now I just ignore them. This is from Whirlpools site.
Normal Sounds and Noises for Whirlpool Refrigerators
Your new Whirlpool refrigerator will probably make different sounds or noises than your previous refrigerator. Below is a list of common sounds the refrigerator might be making. Please click on each sound to learn more.
Buzzing: Water valve will make a buzzing or clicking sound if the ice maker is not connected to a water supply.
Chattering when dispensing: Water line may be kinked.
Grinding or Squeaking: Doors may be rubbing against cabinets or other surfaces when opening.
Gurgling: Refrigerant flowing through the tubes after a cooling cycle.
High-Pitched or Pulsating: Compressor fans adjusting to optimize performance.
Popping or Cracking: Contraction and expansion of the inside walls.
Rattling or Vibrating: Flow of refrigerant through cooling system, or water through the water line, items on the top of the refrigerator, refrigerator not level.
Sizzling, Hissing or Water Dripping: Water dripping on to the defrost heater during the defrost cycle.
Thumping or Hammering: Water line during a fill cycle.
https://producthelp.whirlpool.com/Re...nds_and_Noises