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No brakes on boost (2003 STI Blobeye)

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Old 24 February 2018, 09:03 PM
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123Thehighlander123
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Default No brakes on boost (2003 STI Blobeye)

As above,

Just fitted a silicon turbo inlet and a load of red engine bay hoses.
Now when on boost the brake pedal goes hard and no brakes haha.

I have done a google and it mentions a check valve, what hose would this be in?

Thanks in advance
Old 24 February 2018, 09:24 PM
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ted bass
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You aint swapped over the non return valve from the oem brake servo hose, someone will post up a pic or diagram so you can see what hose it is
Old 24 February 2018, 09:40 PM
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rickybobby
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hose on the right of the intercooler from inlet to bulkhead has a 1 way valve in it. Cut open the pipe and insert it in the new pipe (make sure you check which way round)
Old 25 February 2018, 09:03 AM
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Don Clark
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Pipe marked #12

Old 25 February 2018, 03:04 PM
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legb4rsk
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A lot odd moaners on this site.But this is a prime example of why it is still relevent.

Good stuff.
Old 26 February 2018, 11:29 PM
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Croney
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Iv a similar problem but it only does it occasionally can this valve start to fail?
Old 27 February 2018, 04:16 AM
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ZANY
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Originally Posted by Don Clark
Pipe marked #12

Just wondering
If bought new would the valve come inside the pipe allready don?
If so you wouldn’t have a link to part number etc and are they all the the same I the 2.0 models?

Or does the valve come on it’s own when purchased ?
Old 27 February 2018, 08:15 AM
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Don Clark
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Originally Posted by ZANY
Just wondering
If bought new would the valve come inside the pipe allready don?
If so you wouldn’t have a link to part number etc and are they all the the same I the 2.0 models?

Or does the valve come on it’s own when purchased ?
The pipe comes with the valve already fitted.
It's the same for all RHD newage including JDM

Vacuum hose -Brake No2 26140FE020

Last edited by Don Clark; 27 February 2018 at 08:17 AM.
Old 27 February 2018, 08:51 AM
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urban
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Prime example as to why you pay someone who knows what they're doing
Old 27 February 2018, 12:30 PM
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ZANY
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Originally Posted by Don Clark
The pipe comes with the valve already fitted.
It's the same for all RHD newage including JDM

Vacuum hose -Brake No2 26140FE020
Thanks
Old 27 February 2018, 01:30 PM
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Tidgy
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Originally Posted by urban
Prime example as to why you pay someone who knows what they're doing
ive seen some tuners manage to do this as well lol
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