ford oil pressure switch

[87crewdually]

Way off with the electric current flowing through the oil theory. Low voltage and amperage will NOT flow through oil to activate a gauge. The sending unit must be grounded.

 

[TwoTone IDI]

im gonna check a few different things. first order of business is going to be rigging up a mechanical gauge just to put my mind at ease... then i will handle the instrumentation problem permanently

thanks for all the useful input guys.

 

[TwoTone IDI]

to follow up i put a regular air gap mechanical gauge on it and saw 30 psi at idle so who knows what's up with the factory sender... other than it being a pile of junk.

ahhh life is good when things go the way you intend them to.