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: Battery recharging
Warning Keep any flammable away from the battery, otherwise evaporated gas of the battery fluid may catch fire, and cause serious injury or death. Caution When removing the battery, disconnect the negative battery cable first and install it last to prevent damage to electrical compo ...

Mazda 6 Service Manual: Wheel hub, steering knuckle pre-inspection
Wheel Bearing Play Inspection 1. Position a dial indicator against the wheel hub. 2. Push and pull the wheel hub by hand in the axial direction and measure the wheel bearing play. Maximum wheel bearing play 0.05 mm {0.002 in} 3. If the bearing play exceeds the specification, replace and tig ...