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

 

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?

 

Have you thought of using the search function?
https://www.scoobynet.com/scoobynet-...eleration.html

 

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