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: Master cylinder disassembly/assembly
Caution If the master cylinder body is damaged, replace the unit as a component. When securing the master cylinder in a vise, tighten only the flange of the master cylinder. 1. Disassemble in the order indicated in the table. 2. Assemble in the reverse order of disassembly. Stop ...

Mazda 6 Service Manual: Drive belt replacement
1. Remove the splash shield (RH). 2. Turn the center of the tensioner pulley clockwise to release tension to the drive belt. 3. Remove the drive belt. 4. Reinstall the drive belt or install a new drive belt. 5. Verify that the drive belt auto tensioner indicator mark does not exceeds the l ...