Check the fuel system lines and hoses for damage, leaks, and deterioration. Replace any damaged parts.

Check all clamps, and make sure they are properly positioned and tightened.

Alternator Reassembly
If you removed the pulley, put the rotor in the drive-end housing, then torque
its locknut to 110 N·m (11.2 kgf·m, 81 lbf·ft).
Remove any grease or any oil from the ...
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.
...
Pilot Bearing Inspection
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 smoot ...