Gurgling is the sound of air moving through excess liquid in the coil or center chimney. The device may still work, but weak vapor, spitback, and leakage often follow if the cause is ignored.
Dry the mouthpiece and pod chamber
Turn the device off and remove the pod or tank as directed by its manual. Wipe the mouthpiece, base, and electrical contacts with a dry tissue. Do not rinse the battery section or push tools deep into its airflow sensor.
Use the manufacturer's clearing method for the center chimney. Designs differ, so avoid forcefully blowing liquid toward the battery.
Check how it was filled
Liquid placed into the center airflow tube goes directly where it should not be. Use only the marked fill opening, stop at the stated capacity, and close the plug completely.
Over-priming a replaceable coil can also create temporary gurgling. A few drops on visible cotton are enough.
Review power and draw
If an adjustable device runs far below the coil's range, it may not vaporize incoming liquid efficiently. Return to the lower end of the printed range and adjust gradually.
Pulling very hard creates another imbalance by drawing extra liquid into the coil. Try a slower, gentler puff.
Consider temperature and liquid thickness
Heat makes e-liquid thinner. A pod left in a hot car may flood even if it behaves normally indoors. Very thin, high-PG liquid can cause the same problem in a large low-resistance coil.
Match the ratio to the hardware and keep the device away from extreme temperatures.
Replace worn parts
Recurring gurgling after correct filling and cleaning can point to an old wick, damaged seal, or cracked pod. Replace the coil or fixed-coil cartridge. On a tank, inspect the O-rings and make sure the coil is fully seated.
Gurgling with liquid escaping outside the device is covered in the pod leaking guide.