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.
Inspection
Raise and support the vehicle.
Remove the front wheels.
Check the thickness (A) of the inner pad (B) and the outer pad (C). Do not
include the thickness of the back ...
Three Way Catalytic Converter
The three way catalytic converter contains precious metals that serve as catalysts,
promoting chemical reactions to convert the exhaust gasses without affecting the
metals.
The catalytic converte ...