I agree with Frenchfry. The issue sounds (gurgling) like its your tank. It sounds like the wick/coil is flooded with too much
e-liquid.
Take your tank apart (empty the unused juice into a container). Remove the atomizer (the part with the heating coil and wick). Dry it off with a paper towel. Reinsert the atomizer, insuring that it is snug (not too tight and not too loose).
When you take your puff, use a slow - long - gentle draw. Not a hard pull like you might with a cigarette. Drawing too hard causes too much liquid to flood the coil, more than it can vaporize, and it has no where to go but up into the mouthpiece and into your mouth.