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: Refrigerant pressure switch inspection
1. Install the SST (gas charging set). 2. Disconnect the refrigerant pressure switch connector. 3. Verify the high-pressure side reading of the SST (manifold gauge) and continuity between the terminals of the refrigerant pressure switch. If not as specified, replace the refrigerant pressure ...

Mazda 6 Service Manual: Inspecting Coolant Level
WARNING Do not use a match or live flame in the engine compartment. DO NOT ADD COOLANT WHEN THE ENGINE IS HOT: A hot engine is dangerous. If the engine has been running, parts of the engine compartment can become very hot. You could be burned. Carefully inspect the engine coolant in the coola ...