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.
Subframe Replacement
Front Subframe Torque
NOTE:
After loosening the subframe mounting bolts, be sure to replace them with
new ones.
Loosely install new front subframe mounting bolts, then tighten the b ...
MAF Sensor/IAT Sensor Replacement
Disconnect the MAF sensor/IAT sensor connector (A).
Remove the screws (B).
Remove the MAF sensor/IAT sensor (C).
Install the parts in the reverse order of removal ...