Oil PSI low
I have a 97 TJ 4.0. It's giving me oiling problems. It's my daily driver, and does fine on the road, but whenever I get off road, at low rpm, I lose oil pressure. On the road I generally have around 30-40 psi, and 15-20 psi at idle. At sustained low rpm (5-600) it goes down to zero. I have also noted lately that if I start the Jeep and let it run for a while at idle, it will get down to around 5 psi. This doesn't seem right to me. Any ideas on what might be wrong?
It doesn't make any strange noises or anything, but I am now afraid to wheel the damn thing.