VACUUM LINE INSPECTION [MZR 1.5, MZR 1.6, MZR 2.0, MZR 2.0 DISI i-stop, MZR 2.5, MZR 2.3 DISI Turbo]
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1. Remove the vacuum hose. (MZR 1.5, MZR 1.6, MZR 2.0, MZR 2.0 DISI i-stop, MZR 2.5, MZR 2.3 DISI Turbo (L.H.D.)) (See VACUUM HOSE REMOVAL/INSTALLATION [MZR 1.5, MZR 1.6].) (See VACUUM HOSE REMOVAL/INSTALLATION [MZR 2.0, MZR 2.0 DISI i-stop, MZR 2.5].) (See VACUUM HOSE REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
2. Remove the check valve connector from the power brake unit. (MZR 2.3 DISI Turbo (R.H.D.))
3. 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. (MZR 1.5, MZR 1.6, MZR 2.0, MZR 2.0 DISI i-stop, MZR 2.5, MZR 2.3 DISI Turbo (L.H.D.))
L.H.D.
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R.H.D.
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4. Verify that air can be blown from the power brake unit side of the check valve connector towards the intake manifold side, and that air cannot be blown in the opposite direction. (MZR 2.3 DISI Turbo (R.H.D.))