Vacuum gauge

[dan carley]

My vacuum gauge is stuck on 5 when I shut down engine. Is
There something I can do to release the gauge

Thanks
Danny carley
N15vr

 

[wawrzynskivp]

Diaphragm Vacuum Guage

Yes,

Many diaphragm gauges have a method for purging accrued invalid reference pressure. Often a screw or a port that can be opened and then closed again.