It appears that the pressure switch has 3 contacts (see pic below). Can someone tell me what I should measure across the switch contacts with a dvm and what the wires connect to? I know some guys on here have said they shorted the contact wires to test and make sure it was a defective switch. Across which of the 3 wires?
Quote:
Originally Posted by clankford
With the gauges attached and engine idling, I am reading about 186 lbs on high side and about 36 lbs on low side.
Switch?
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