Non working boost guage

[Cartel]

Hey iv got a question. The other day I was driving and noticed my boost guage (stock well the whole truck is bone stock) was at 0. And it never moves. Usually it sits under 0 then of course moves when you build boost. Is there something I should check for or is it just the guage itself crapping out?

[03stx]

Check under the dash and see if the tubing somehow got disconnected from the plastic coupler.

[TXLIGHTNING]

You should hear a air sucking sound coming from where it came disconnected.