Hey guys, once again i need help. the patient - '96 Xj Country 4.0, aw4, 242. 158,xxx miles on her. this is my girls daily driver, about two months ago her oil pressure gauge starting reading all whacky, it would just constantly bounce around from 10-80 down to 20, up to 70, just constant random numbers. i figured yeah ok the sender by the oil filter went bad, well i finally got around to replacing this over the weekend. i go fire up the truck, (motor was cold) and the gauge goes to 50 psi, i hit the gas, still 50psi, i drive it down the road and it does'nt move, 50 psi, warms up to full temp, still 50 psi, so basically no matter the temp of the motor or position of the trottle the gauge reads 50psi and does'nt move. then i heard fram filters can do whacky things to our 4.0's so i changed the oil and filter yesterday with castol gtx 10/30 and a pronto oil filter, but i still have the same problem. Do the actually guages themselves fail?? its just weird that i had the original issue and changing the sender seemed to have made it even a stranger issue. any help is appreciated. thanx.