1. Verify that the joint shaft is not twisted or cracked.
2. Turn the joint shaft by hand and verify that the bearing rotates smoothly and freely.

Drive shaft
Joint shaft removal/installationMazda 6 Service Manual: Vinyl Upholstery Maintenance
Remove dust and dirt from the vinyl upholstery using a brush or vacuum. Remove
soiling from vinyl upholstery using a leather and vinyl upholstery cleaner.
Upholstery Maintenance
1. Clean the soiled area by lightly dabbing it with a soft cloth soaked in a
mild detergent (approx. 5%) diluted wit ...
Mazda 6 Service Manual: Variable intake-air system (vis) control solenoid valve inspection (l3)
1. Remove the VIS control solenoid valve. (See INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION.)
2. Inspect airflow between the ports under the following conditions.
If not as specified, replace the VIS control solenoid valve.
If as specified, carry out the Circuit Open/Short Inspection.
Circ ...