Vacuum Brake Booster Check Valve: Testing and Inspection

VACUUM LINE INSPECTION

MZR 2.0, MZR 2.5, MZR 2.3 DISI Turbo

1. Remove the vacuum hose. Service and Repair Service and Repair

2. Verify that air can be blown from the power brake unit side of the vacuum hose towards the intake manifold side, and that air cannot be blown in the opposite direction.






- If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit.

SKYACTIV-G 2.0

1. Remove the vacuum hose. Service and Repair

2. Verify that air can be blown from the power brake unit side of the vacuum hose towards the vacuum pump side, and that air cannot be blown in the opposite direction.






- If there is any malfunction of the inner check valve, replace it together with the vacuum hose as a single unit.