Moving this from another post. The facts: 99 DII with 140k miles. My oil light has come on a few times while driving on the highway. I pull over, turn off the engine and wait a few minutes. Restart, light still on. Shut engine off & wait. Repeat 2-3 times, and light will stay off. Drive a while & repeat the above. Then the problem will disappear for a few weeks. This has happened twice on the highway & once while off roading.
Other facts. Im using 15w-40 oil and yes its full. I have never had the oil light flicker or come on while at idle. Also, my drive way has a pretty good incline. If I park the vehicle nose up, the oil light will stay on when I start the vehicle first thing in the morning. It goes off when I let the vehicle roll out onto the street. If I park the vehicle nose down, oil light goes out instantly during start up.
I had the oil pan dropped. They said there was no sludge and that the screen was clean. They cleaned everything and replaced the pick up tube O ring.
I have searched but not finding anything with my specific issues. Any ideas on the cause? Change out the main bearings? The oil pump itself?
Other facts. Im using 15w-40 oil and yes its full. I have never had the oil light flicker or come on while at idle. Also, my drive way has a pretty good incline. If I park the vehicle nose up, the oil light will stay on when I start the vehicle first thing in the morning. It goes off when I let the vehicle roll out onto the street. If I park the vehicle nose down, oil light goes out instantly during start up.
I had the oil pan dropped. They said there was no sludge and that the screen was clean. They cleaned everything and replaced the pick up tube O ring.
I have searched but not finding anything with my specific issues. Any ideas on the cause? Change out the main bearings? The oil pump itself?
