Oil pressure sender or hpop issue
I started to have occasional oil pressure drops. it will jump to normal at idle sometimes and show no pressure at idle some also. I will sometimes get pressure at idle and sometimes i wont. but always good pressure while at any rpms above idle.
I thought it could be the freeze plug issue on the hpop.
Has anyone had a simular issue to an irratic sender. I replaced the switch today with a new one and now it jumps more than ever. The old one had oil in the plug. Maybe i didnt clean the plug out good enough.