Inspect the crankshaft pilot bearing for wear and damage.
Inspect the inside surface of the crankshaft pilot bearing with your finger. If the crankshaft pilot bearing is not smooth, replace it; go to step 22.

Warm Up TWC Removal/Installation
NOTE: If the warm up TWC is damaged internally, inspect the under-floor TWC
for debris.
Raise the vehicle on a lift.
Remove the bolts (A).
Lower the vehicle.
...
Intermediate Shaft Removal (A/T)
Drain the transmission fluid. Reinstall the drain plug with a new sealing
washer.
Remove the right driveshaft.
Remove the shift cable cover (A).
Re ...
Mainshaft Disassembly, Inspection, and Reassembly (A/T)
Inspect the thrust needle bearings and the needle bearings for galling
and rough movement.
Inspect the splines for excessive wear and damage.
Check the shaft bearing s ...