New oil pump

[marek4792]

My old truck would hum loudly during low idle 700rpm however it would quiet it down if I high idled the engine, my X15 was humming quite a bit at first but has since went quiet. For some reason on them they seem to read low on the gauge haven't verified actual pressure on insite, but when investigating the flow and parts diagram the oil cooler shows it has some sort of screen filter resembiling a plastic coffee strainer inside of where the oil thermostat goes into atleast in my oil cooler and maybe could be causing a restriction before the filter itself and lower pressures on higher rpms?