Mazda 6 Service Manual: No.5 engine stalls-after start/at idle

No.4 hard to start/long crank/erratic start/erratic crank

No.6 cranks normally but will not start

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: Clutch unit removal/installation
1. Remove in the order indicated in the table. 2. Install in the reverse order oremoval. Clutch Cover and Disc Removal Note 1. Install the SSTs. 2. Loosen each bolt one turn at a time in a crisscross pattern until spring tension is released. 3. Remove the clutch cover and disc. Flywhee ...