Mazda 6 Service Manual: No.12 lack/loss of power-acceleration/cruise

No.11 engine stalls/quits, engine runs rough, misses, buck/jerk, hesitation/stumble, surges

No.13 knocking/pinging-acceleration/cruise

Other materials:

Mazda 6 Service Manual: Cooling system service warnings
COOLING SYSTEM SERVICE WARNINGS Warning Never remove the radiator cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling sys ...

Mazda 6 Service Manual: Battery inspection
Battery Inspect the battery in the following procedure. Test load chart Battery positive voltage with load Back-up Current 1. Verify that the engine switch is at OFF and that the key has been removed. 2. Disconnect the negative battery cable. 3. Measure the back-up current between the n ...