My 2015 jeep engine oil light began to come on when the engine achieved normal temperatures at about 80k miles. No rattling or noise from the engine. Had the filter housing and oil sensor replaced since I could smell a bit of oil at an idle. Oil light continued to come on so I had the 2 stage oil pump replaced and the wiring chased and verified. Oil light continued to return. Mechanic used a mechanical pressure sensor and found when the oil was normal operating temperature, the oil pump solenoid would shift As required, but the oil pressure would actually drop off to nearly zero and rapidly return to normal. This would repeat periodically. Have currently 110k miles on the engine. Any ideas that would cause the oil to fluctuate would be helpful.