oil pressure switch

I have 1985 G20 chevy van with a 305. Should the oil pressure switch be closed or open with the engine running.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Well, if the pressure switch is used for the low oil pressure indicating light on the dash it will be closed when the engine is not running and vice versa unless the oil pressure is too low or the switch is defective.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.