Mazda 6 Quiz
Fuel and emission control systems

Variable air duct (vad) check valve (one-way) inspection (l3)

In this manual: Fuel and emission control systems
General information — 42Engine — 23Lubrication system — 10Cooling system — 9Fuel and emission control systems — 161Engine electrical system — 17Clutch — 21Manual transaxle — 10Automatic transaxle — 110Front and rear axles — 20Steering system — 15Braking system — 104Suspension — 34Body — 201Body electrical system — 287Heater and air conditioner systems — 89Technical data — 1Special tools — 1
~1min read

1. Remove the VAD check valve (one-way). (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION)

2. Blow through A and verify that air flows from B.

3. Blow through B and verify that air does not flow from A.

  • If not as specified, replace the VAD check valve (one-way).

Test yourself

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