[urq] Boost leak sound in the cabin...

[Ingo Rautenberg]

L-A,

I was going to say I had a similar concern on my 200q20v (3B motor) and did
the same checking and found it was a bad kink/crack that went to the
supplemental VDO boost gauge, which I had mounted near the Driver's side
A-Pillar.  But I thought it was at the ECU.  I was wrong.  Field repair
courtesy NAPA hose kit at the track (Road America) and all was good.

Good Luck.

Ingo

On Thu, Jan 7, 2010 at 4:27 PM, Louis-Alain Richard
<larichard at plguide.com>wrote:

> That’s why having a friend with a dyno is handy... when he’s there ! Brady,
> where are you when I need you ?
>
>
>
> Seriously, the diff circuit is fine since it works perfectly under boost,
> where I guess the diff would unlock if pressure was entering the circuit.
>
>
>
> Same can’t be said about the recirculation flap since I did not tried it
> under boost... Could very be the culprit, I disconnected that hose to gain
> access to the heater core. Do you know they built the car around that heater
> core ? It must part number 1 in the assembly process... boy is it deeply
> buried down there.
>
>
>
> The boost gauge circuit is still to check, but the sound was clearly coming
> from the right side.
>
>
>
> Every other hose has been replaced last summer, when the engine was
> rebuilt. A quick look under the hood didn’t reveal any missing clamp or torn
> hose.
>
>
>
> More to come...
>
>
>
> LAR
>
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>
>
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> You can prob tell better, but did you think of checking the vacum lines for
> the locking diffs that are located in the center console? maybe the reverse
> flow check valve is bad and is leaking back boost or vac?
>
>
>
> Just a passing thought ...
>
>
>
> Maybe other way, have someone in the car while driving and get their head
> down there to better pin point the location...?
>
>
>
>
>
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