Z32 Brake Booster Hose

Discussion in 'Technical' started by Boll!, Jul 14, 2019.

  1. Boll!

    Boll! Well-Known Member

    Hi Guys.
    Has the hose that comes off the plenum and goes to the brake booster seems to have some sort of valve in it?
    What does it do?

  2. rob260

    rob260 Administrator Staff Member

    There is no valve in the hose, but the hose runs to a check valve and then to the brake booster. The check valve is closed when the manifold is under pressure and open when under vacuum.

    Without it you would have a vacuum assisted, and boost resisted brake pedal.
    ZOE NZX300 likes this.
  3. Boll!

    Boll! Well-Known Member

    That makes sense, thanks Rob

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