Check the play of the release bearing by spinning it by hand. If there is excessive play or noise, replace the release bearing.

NOTE: The release bearing is packed with grease. Do not wash it in solvent.
Power Mirror Actuator Replacement
Removal
Remove these items:
Mirror holder
Power mirror
Record the power mirror connector terminals location and the wire harness
colors. ...
Tools
Types of Tools
The tools were stored in the cargo area. ...
Cylinder Head Inspection for Warpage
Remove the cylinder head.
Inspect the camshaft.
Check the cylinder head for warpage. Measure along the edges, and three
ways across the center:
If wa ...