Getting voltage through a flexible conduit

Very confusing, because first you say the outlet box is plastic and then you say you're having problems with the metal box. Also you don't typically see metal conduit mixed in with plastic boxes. But if you're getting a shock between metal conduit and something that is at ground potential, eg a water faucet, then you have a serious and dangerous problem. There is apparently a fault that's energizing the metal and the metal is not properly bonded to earth ground. You need to get his addressed immediately. It could be a problem on just one part of one circuit or more extensive, possibly affecting all circuits in the building.

Where are you checking specifically? Are you checking from these boxes to a good ground of some sort? Maybe checking to a ground rod? You'll get a reading of zero voltage if you are checking from one box at 120 volts to another box at 120 volts if the two boxes are on the same leg. Is the flexible metal conduit connecting the outlet box and the junction box?

there is voltage in coming out of that junction box flexible conduit, and junction box are with no voltage getting shocked any wires exposed?

re: "voltage in coming out of that junction box flexible conduit"

What does that mean?

re: "junction box are with no voltage getting shocked"

What does that mean?

re: "any wires exposed?"

I'm guessing that's a standalone question, which makes it the only part of your post that is (barely) understandable.

You should never see metallic wiring methods connected to plastic boxes ... code violation

Mac-

Your circuit is mis-wired. A licensed electrician should be easily able to correct the problem. Don't hurt yourself.

Fred

I guess that's one good reason why I haven't seen it. LOL