TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

Well I have myself a boost leak... sounds like when a trumpet player pushes air though their lips

Thread Tools
 
Search this Thread
 
Old Jun 5, 2008 | 05:25 PM
  #1  
HACK THS's Avatar
Thread Starter
AudiWorld Super User
 
Joined: Oct 2000
Posts: 10,540
Likes: 0
Default Well I have myself a boost leak... sounds like when a trumpet player pushes air though their lips

It is a whistle type sound. Sounds like I have air under higher boost pushing out past a hose. It seems to be coming from the passenger side.
Again it sounds like when when someone puts their lips together like a trumpet player and forces air out between their lips.

Problem is I can't reproduce it until I am driving and past around 8psi of boost. When I am holding on the accelerator I feel fluttering up high with the boost, like it just looses power, but comes back, etc.

I was hoping I could hold high boost and blow off the hose causing the issue- easier to find I thought. I am not getting any CEL's. Wondering if others have heard that sound. It is pretty loud and seems to be coming from the passenger side like I said. Really noticeable if there is a wall or something next to me, sounds like someone screaming.

I have not been under the car, nor taken the front end off. This started a few weeks ago all of a sudden when I was going to Rich's for my CPT arms. Could a slightly lose FMIC hose be causing a sound like that under heavy boost? I have tCarbons 180 FMIC, and it has been great. But with his there are some couplers that possibly could be leaking to bring the hoses around. Just wasn't sure if someone has heard that type of sound and knows roughly what could cause it. I don't think any of the small boost hoses could produce such a loud sound.
Reply
Old Jun 5, 2008 | 05:36 PM
  #2  
roadyTT's Avatar
AudiWorld Super User
 
Joined: Jul 2005
Posts: 6,599
Likes: 0
Default You don't mean...

<ul><li><a href="http://www.youtube.com/watch?v=qaXa55ONxvQ&amp;feature=related">Do you?</a></li></ul>
Reply
Old Jun 5, 2008 | 05:40 PM
  #3  
TTschwing's Avatar
AudiWorld Uber User
Tech Guru
 
Joined: Dec 2000
Posts: 53,281
Likes: 2
Default Yup......>

<center><img src="http://images114.fotki.com/v633/photos/7/7305/52227/bubbbike00-vi.gif"></center><p>
Reply
Old Jun 5, 2008 | 06:26 PM
  #4  
JohnLZ7W's Avatar
AudiWorld Super User
 
Joined: May 2000
Posts: 21,112
Likes: 1
Default Start here, snowpunk had a similar noise on his, turned out it was just a loose clamp

<ul><li><a href="https://forums.audiworld.com/tt/msgs/1606085.phtml">https://forums.audiworld.com/tt/msgs/1606085.phtml</a</li></ul>
Reply
Old Jun 5, 2008 | 08:00 PM
  #5  
cedricl's Avatar
AudiWorld Senior Member
 
Joined: Aug 2002
Posts: 1,112
Likes: 1
Default

Oh god! That is so bad. Where the hell did you find that?
Reply
Old Jun 5, 2008 | 08:10 PM
  #6  
HACK THS's Avatar
Thread Starter
AudiWorld Super User
 
Joined: Oct 2000
Posts: 10,540
Likes: 0
Default Thanks, I assumed it might be one of the hoses connecting the FMIC

Couldn't imagine the sound coming from something small, because it is so loud under pressure. Plus with the number of large hoses attaching the FMIC I am not surprised. Obviously mine is not the hold in the link, since I have a 180, but I will go though and make sure everything is tight shortly. Thanks John!
Reply
Old Jun 5, 2008 | 09:29 PM
  #7  
JohnLZ7W's Avatar
AudiWorld Super User
 
Joined: May 2000
Posts: 21,112
Likes: 1
Default right, forgot the 180 doesn't have a hose there

sounds like a similar noise tho so I'd start looking for something big first.
Reply
Old Jun 5, 2008 | 10:30 PM
  #8  
snowpunk_AGTT's Avatar
AudiWorld Super User
 
Joined: May 2006
Posts: 2,740
Likes: 0
Default

yea, that advice saved my ***...
Reply
AudiWorld Stories

Bringing Audi to Life for Audi Fans

story-0

New Audi A6 Allroad Is The Market's Coolest Wagon: 9 Things to Know

 Pouria Savadkouei
story-1

10 Strangest Audi Designs That Actually Made Production

 Joe Kucinski
story-2

2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!

 Michael S. Palmer
story-3

Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

 Verdad Gallardo
story-4

The Highs & Lows of Every Audi C-Class Generation

 Joe Kucinski
story-5

Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

 Brett Foote
story-6

10 Audi Features & Options We Miss the Most!

 Joe Kucinski
story-7

Audi Recreates Crazy-Looking Speed Record Breaker From 1935

 Verdad Gallardo
story-8

Coachbuilder Recreates the 1995 Audi TTS Concept

 Verdad Gallardo
story-9

Every Audi V10 Car Ranked!

 Joe Kucinski
Old Jun 6, 2008 | 04:23 AM
  #9  
TTschwing's Avatar
AudiWorld Uber User
Tech Guru
 
Joined: Dec 2000
Posts: 53,281
Likes: 2
Default Be sure to check the one with the molded in MAP sensor....>>

Been some failures there with the Sensor mount.
5 for Gary (N9909E) as I recall..

You may need to pressure check the system...<ul><li><a href="http://www.modshack.info/pressure.htm">http://www.modshack.info/pressure.htm</a</li></ul>
Reply
Old Jun 6, 2008 | 05:20 AM
  #10  
HACK THS's Avatar
Thread Starter
AudiWorld Super User
 
Joined: Oct 2000
Posts: 10,540
Likes: 0
Default I plan to look all over that area, with the amount of the hi-temp stuff though I used I doubt it

But who knows, I know tylor is sending me another updated FMIC piece, not sure where it goes in the system though.

So all I need to do is replace my MAF with that pressure tester, hook up my compressor to it, set it to 7-10psi and listen and track the sound right? I don't need anything fancy. My compressor has a regulator gauge on it.

Also your PCV line pic you link on your page there is broken so you know. If that is all I will need I'll get you paypal now.
Reply



All times are GMT -8. The time now is 02:37 PM.

story-0
New Audi A6 Allroad Is The Market's Coolest Wagon: 9 Things to Know

Slideshow: Audi's latest A6 Allroad gets RS-style fenders, real off-road hardware, and enough personality to stand out in a market obsessed with crossovers.

By Pouria Savadkouei | 2026-06-16 17:31:52


VIEW MORE
story-1
10 Strangest Audi Designs That Actually Made Production

Slideshow: 10 strangest Audi designs that actually made production

By Joe Kucinski | 2026-06-10 16:32:29


VIEW MORE
story-2
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!

Slideshow: Everything you need to know about the 2027 Audi Q7 and SQ7

By Michael S. Palmer | 2026-06-09 06:02:56


VIEW MORE
story-3
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

Slideshow: Limited to just 499 units, the 987-horsepower halo car signals a new chapter for Audi performance.

By Verdad Gallardo | 2026-06-04 17:37:15


VIEW MORE
story-4
The Highs & Lows of Every Audi C-Class Generation

Slideshow: The highs and lows of every Audi C-Class generation.

By Joe Kucinski | 2026-05-27 16:05:50


VIEW MORE
story-5
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

People were more than happy to shell out big bucks for these cars.

By Brett Foote | 2026-05-27 15:32:23


VIEW MORE
story-6
10 Audi Features & Options We Miss the Most!

Slideshow: 10 Audi features and options we miss the most.

By Joe Kucinski | 2026-05-12 19:33:47


VIEW MORE
story-7
Audi Recreates Crazy-Looking Speed Record Breaker From 1935

Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.

By Verdad Gallardo | 2026-05-11 09:49:34


VIEW MORE
story-8
Coachbuilder Recreates the 1995 Audi TTS Concept

Slideshow: A Dutch coachbuilder has reimagined the original Audi TT by finishing what the 1995 concept only hinted at.

By Verdad Gallardo | 2026-05-05 15:17:58


VIEW MORE
story-9
Every Audi V10 Car Ranked!

Slideshow: Ranking every Audi V10 road car

By Joe Kucinski | 2026-04-29 16:11:56


VIEW MORE