WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
Measure each of the crankshaft main bearing journal diameters in at least two directions at each end of the main bearing journal.
If out of specification, install new components as necessary.
Fig 1: Measuring Crankshaft Main Bearing Journal Diameters