Engine Mechanical problem
2001 Jeep Cherokee 6 cyl Four Wheel Drive Automatic 177777 miles
A short time ago oil pressure was nil. Had oil pump and sender replaced. Oil pressure increased but drops to almost 0 when stopping at red light. Had oil changed and upgraded to 10W40. It definitely helped but still drops to almost 0 SOMETIMES when idling and check engine light comes on. I would love to get some more life out of my baby. What do I need to do?