Mazda 6 Service Manual: No.23 a/c does not work sufficiently

No.22 vibration concerns (engine)

No.24 a/c is always on or a/c compressor runs continuously

Other materials:

Mazda 6 Service Manual: Timing chain
TIMING CHAIN REMOVAL/INSTALLATION Warning Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injures or death and damage. Fuel ...

Mazda 6 Service Manual: Engine tune-up
IGNITION TIMING INSPECTION Note Ignition timing is not adjustable. Ignition timing verification requires WDS or equivalent. 1. Turn off the electrical loads. 2. Warm up the engine as follows. (1) Start the engine. (2) Maintain the engine speed at approx. 3,000 rpm until the cooli ...