Fuel and emission control systems

Variable air duct (vad) shutter valve inspection (l3)

~1min read

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 air cleaner.

Test yourself

A quick Mazda 6 quiz: every answer comes with an explanation and a link to the manual page.