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: Rear oil seal
REAR OIL SEAL REPLACEMENT 1. Remove the flywheel. (MTX) (See CLUTCH UNIT REMOVAL/INSTALLATION) 2. Remove the drive plate. (ATX) (See DRIVE PLATE REMOVAL/INSTALLATION) 3. Remove in the order indicated in the table. 4. Install in the reverse order of removal. Rear Oil Seal Installation Note ...

Mazda 6 Service Manual: Intake air temperature (iat) sensor inspection
Resistance Inspection Note Perform the following inspection only when directed. 1. Disconnect MAF/IAT sensor. 2. Measure the resistance between the MAF/IAT sensor terminals D and E using an ohmmeter. If not as specified, replace the MAF/IAT sensor. If the MAF/IAT sensor is okay, but ...