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

[quattrodude at comcast.net]

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...? 


----- Original Message ----- 
From: "Brandon Rogers" <brogers at terrix.com> 
To: "Louis-Alain Richard" <larichard at plguide.com>, "urq list" <urq at audifans.com> 
Sent: Thursday, January 7, 2010 10:24:36 AM GMT -08:00 US/Canada Pacific 
Subject: Re: [urq] Boost leak sound in the cabin... 

I'd pressure test the whole system and see what you find because you have 
already eliminated the most likely cause. 

Brandon 
'84 ur 

-----Original Message----- 
From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On Behalf 
Of Louis-Alain Richard 
Sent: Thursday, January 07, 2010 8:39 AM 
To: 'urq list' 
Subject: [urq] Boost leak sound in the cabin... 


Hi there, 

While I prepare the car for the ice lapping event of the week-end, (heater 
core, rear brakes), I noticed a hissing sound form the passenger footwell 
area. Since the glovebox is removed, it is very noticeable but I can't say 
for sure if it was there before. 

It grows accordingly with the boost pressure, and I can even hear the 
characteristic off-throttle "flutter" (a very fast "foo-foo-foo") when I 
stop accelerating.