95 Nissan Quest, 145k
It started with the oil light on and off. It was on when stop or slowing down and the light went off when accelerating over 25 or 30 mph. I did find there is an oil leaking somewhere. I planned to take it to garage for check up and the symptom disappeared. I used the car for short trip about two weeks and the symptom did not come back. I checked oil almost every day since then.
Recently when I took a trip on highway, the light came on after about 30 miles. I stopped and checked oil. The oil was all right. I started the car and light did not come on at the beginning. However, it came on (blinking) after 5 minutes of drive and I heard a clicking sound. I had it towed to a lcoal garage.
The mechanic found a severe leak and need to replace ?gasket? or something like that, about a couple hours of work. He said the noise properly was from the lifter. However, when he checked the oil pressure, the pressure continued to drop to about 8 lb. He said the bearing properly worn and I will need a new engine.
It properly not worth to replace the engine since it is 15-year old. But before I say good-bye to the car I just want to get a second opinion. Could it be something clog the oil pump screen? Would it be good to check that first? Is there anything I can do (within a reasonable cost) before declaring the death of the car? Thank you for your advices.