Quote:

PLugged pickup screen is common.



Pickup probably clogged with sludge and starved the oil pump. My parents bought a used 96 dak with the 3.9 and it did the same thing. My dad shut it down when the lifters bled down on the highway and started clacking away. Had to pull the pan, remove the pickup and clean everything out. Pulled the valve covers and they were full of sludge too.