Mazda 6 Quiz
Braking system

Vacuum hose check valve inspection (power brake unit)

In this manual: Braking system
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 clamps and vacuum hose.

2. Apply both suction and pressure to the engine-side hose, and verify that air blows only toward that side.

  • If air flows in both directions or not at all, replace the vacuum hose.

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