Ok. So bought new gauge and hooked it up. So let me walk back everything that I had done before. Ever other time I had started/run the machine it had been at idle speed. Even when I used it before I never took it out of "low". When my Husband was showing me how to run the tractor before, I always had it in low speed. It was what I felt comfortable with. After hooking up the new gauge and I took the RPMs up to between 1500 & 2000, the gauge went up to about 58 psi. Before I took the idle up, the gauge didn't move. Since I am new to all this mechanicing stuff, does the tractor need to be ran at higher RPMs to build oil pressure? Could that have been my problem all along? And if that was the case, should I leave the gauge hooked up and not put the sensor back in? This has been the first time since my Husband has been gone that I have been "upset" with him. lol Not really upset with him, just frustrated with myself for not having the knowledge to know what to do.