1. Verify that there is no torsion or cracks on the joint shaft.
If there is any malfunction, replace the joint shaft.
2. Turn the joint shaft by hand and verify that the bearing rotates smoothly.

If there is any malfunction, replace the joint shaft.
Joint Shaft Disassembly [Skyactiv G 2.0]
Joint Shaft Removal/Installation [Mzr 2.0, Mzr 2.3 Disi Turbo, Mzr 2.5]Contact Authorized Mazda Dealer and Have Vehicle Inspected
If any of the following warning lights or the indicator light turns on/flashes, the system may
have a malfunction. Contact an Authorized Mazda Dealer to have your vehicle
inspected.
...
Positive Crankcase Ventilation (PCV) Valve Inspection [Mzr 2.0, Mzr 2.5]
Airflow Inspection
1. Disconnect the section (A) of the ventilation hose shown in the figure.
2. Start the engine and verify that vacuum is applied to the end of the disconnected
ventilation hose while the engine is idling.
NOTE:
Because it is difficult to directly inspect the PC ...
Charcoal Canister Removal/Installation [Mzr 2.0, Mzr 2.5]
Except for Mexico
1. Remove in the order indicated in the table.
1
Evaporative hose
2
Quick release connector
(See QUICK RELEASE CONNECTOR (EMISSION SYSTEM) REMOVAL/INSTALLATION [MZR
2.0, MZR 2.5].)
3
Charc ...