My Jeep overheated and the the oil pressure gauge went from 40 to 60 all of a sudden. I took my car to the mechanic and replaced the thermostat, flushed the radiator, replaced the serpentine belt, flushed the oil replaced the radioator cap and had to plane the head and repace the gasket. After all of this the oil pressure sensor was changed. Now my oil pressure is running a 50-55 and had always in the past ran at 40. The coolant is running normal, but I noticed a leak in radiator. Please help. I sure hope it is not the radiator I am at $1,600.00 in repair bills and the car is not right.