[Brian]

My Labrador Retriever had similar issues for at least several weeks or even a few months when he was a puppy. I was concerned as well. I just kept working with him in safe places and eventually he eased up. Now he’s perfectly comfortable with cars and others noises. We live in a neighborhood surrounded by a rural area. Now he is just a little skittish when he hears gunshots from hunters or fireworks in the distance. I hope your puppy eventually gets used to noises.

[Ed]

I would lessen the intensity of the stimulation to a point where he is on the edge, but not quite freaked out and then just sit there with him, with a quiet, but upbeat attitude, possibly give him some treats, or perhaps even luring him onto some behaviors he is familiar with. I would not expect him to perform the behaviors given the high level of distraction, and that he probably has not generalize them, but use the opportunity to lure some very simple things, like “come” or “<Name>” from 6 inches away. I would do it with only one type of stimulus at a time, if possible, and add as much distance as needed to diminish the intensity of it. To build confidence train things he is solid on in different environments. The more success, reasons for praise with honest corresponding praise he gets the more confident he will become. Good luck. Let us know how it goes.

[Ed]

BTW, if he does not take food the stimulation is still too intense. I would lessen it by removing some elements or adding more distance