Mazda 6 Service Manual: No.20 noise occurs at idle when vehicle is stopped in all positions/ranges

No.19 excessive shift shock on torque converter clutch (tcc)

No.21 noise occurs at idle when vehicle is stopped in d, s, l ranges, or in r position

Other materials:

Mazda 6 Service Manual: Pcv valve inspection
1. Disconnect the negative battery cable. 2. Remove the intake maniforld.(see INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 3. Remove the PCV valve. 4. Blow through the valve and verify that air flows as specified. If not as specified, replace the PCV valve. Specification ...

Mazda 6 Service Manual: Main fuse removal/installation
1. Disconnect the negative battery cable. 2. Remove the main fuse block cover. 3. Remove in the order indicated in the table. 4. Install in the reverse order of removal. Bolt Removal Note 1. Press and remove the tabs on the main fuse block at the positions indicated by the arrows. 2. L ...