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Brake pedal goes hard under Acceleration

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Old 27 December 2020, 02:40 PM
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Ryan97
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Default Brake pedal goes hard under Acceleration

Hey guys,
I'm new to the subaru world, Got myself a 2005 Impreza WRX Turbo and i'm after some advice. When i boot the vehicle i have noticed that the brake pedal goes solid and after a couple of seconds it goes back to normal is this normal for these or have i got a problem down the line somewhere? Thanks
Old 27 December 2020, 02:47 PM
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Don Clark
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Sounds as if you may have a problem with the brake booster vacuum line or the nrv in it.
Old 27 December 2020, 03:03 PM
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Ryan97
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Originally Posted by Don Clark
Sounds as if you may have a problem with the brake booster vacuum line or the nrv in it.

Is this the one? and it says something about a valve inside the line?
Old 27 December 2020, 04:28 PM
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JDM_Stig
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Have you thought of using the search function?
https://www.scoobynet.com/scoobynet-...eleration.html
Old 27 December 2020, 05:32 PM
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Don Clark
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Originally Posted by Ryan97

Is this the one? and it says something about a valve inside the line?
Your image shows LHD setup.

The hose in question is item 12 below and yes the OEM hose has a NRV in it which people "forget" about when changing to silicone hoses



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