
Diagnostic procedure



No.11 engine stalls/quits, engine runs rough, misses, buck/jerk,
hesitation/stumble, surges
No.13 knocking/pinging-acceleration/cruiseMazda 6 Service Manual: Rear drain hose installation
Caution
If the rear drain hose is pinched or bent anywhere, the water in the hose may
not discharge and enter the inside of the vehicle. During and after installation
of the trims and the headliner, always make sure there is no interference with
the rear drain hose. Fix any problem if foun ...
Mazda 6 Service Manual: Variable air duct (vad) shutter valve inspection (l3)
1. Remove the air cleaner case. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
2. Disconnect the vacuum hose from the VAD shutter valve actuator.
3. Connect a vacuum pump to the VAD shutter valve actuator.
4. Apply vacuum and verify that the rod moves.
If the rod dose not move, replace the a ...