Anybody know how to test the oil pressure sending unit. We have a m715 ready run but it has no oil pressure on the gauge. The truck sounds great. But since this is going to be a fire truck (brush truck) used by alot of different people. I want all of the gauge's to work. Is there anyway to test the sending unit. I dont want to just throw money at the problem if I can avoid it.
Thanks Tiadaghton Forest Fire Fighters Association