Ok, so I had an idler pulleys bearings take a dump and shell out. It made the serpentine belt on my 2.5L not serviceable also. So I changed the belt and the pulley. So I fire up the jeep and drive down my half mile driveway, and watched my oil pressure spike out at 75-80 under and around1,500 rpm. So I turned it off. Turned the key to acc position and gauge told me I was pushing 5-10 psi without the motor running.... Any suggestions?