On the 3.9L V6, 5.2L V8 and 5.9L V8 the Oil leaks commonly from the valve cover gaskets, intake manifold gaskets (front and rear), timing cover gaskets, distributor O-ring, and the rear main seal area. Using fluorescent engine oil dye can be helpful in determining the source(s) of the oil leak.
Average mileage: 159,816 (94,000–265,000)
Engines affected: 3.9L V6, 4.7L V8, 5.2L V8
35 people reported this problem