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Old 09-16-2008, 09:50 PM   #1
STINOMORMONEY
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Default Silly question from a silly man

is there anyway to determine 100 percent if there is A an exhaust leak or B a Boost leak- not nec. the cause but whether there is one- ANY information is greatly appreciated
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Old 09-17-2008, 12:53 AM   #2
GDB FAN
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Any more info?
How does it feel while driving? Do you have a boost gauge?
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Old 09-17-2008, 01:55 AM   #3
STINOMORMONEY
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yea feels a bit sluggish and i am only hitting 20/21 psi in 1 and 2nd and 23 in 5th where i thought i was getting 24 in 3rd and 4th before.

and a few weeks ago i was hearing a funny noise out of the turbo but it has since gone away to the best of my knowledge but maybe theyre connected

but i was wondering if there was a way to determine it so i could figure out yes or no so i could sleep better at night

plus i might try for another tune and i dont want this to scrap it
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Old 09-17-2008, 02:15 AM   #4
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Quote:
Originally Posted by STINOMORMONEY View Post
yea feels a bit sluggish and i am only hitting 20/21 psi in 1 and 2nd and 23 in 5th where i thought i was getting 24 in 3rd and 4th before.

and a few weeks ago i was hearing a funny noise out of the turbo but it has since gone away to the best of my knowledge but maybe theyre connected

but i was wondering if there was a way to determine it so i could figure out yes or no so i could sleep better at night

plus i might try for another tune and i dont want this to scrap it
What you need to do is go out and do a third gear pull and pay attention to your boost gauge. If it goes up then fluctuates around then you have a boost leak. If it goes up and falls slowly its normal.
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Old 09-17-2008, 09:47 AM   #5
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I saw a post on another board saying they detected an exhaust leak by using SeaFoam in the intake and looking for smoke coming out of the wrong place. Never tried it myself.
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Old 09-17-2008, 10:20 AM   #6
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A- exhaust leak. Check all the flanges and exhaust locations for exhaust gasses comming out of them. Have someone tap the gas a little bit

B- Boost leak. With me personal experience with boost leaks, when hitting boost, it sounds like a chirp or whiney noise.

I have 2 exhauts leaks in my current set up and my gas milage sux uberly. If your gas milage plumits and your car is sluggish, its a good chance its an exhuast leak
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Old 09-17-2008, 01:41 PM   #7
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thanks a lot guys and as far as boost it hits and then stays with the 44 ext wg it hold all the way- it just doesnt reach what i think it should

but im gonna check for the exhaust leak with a buddy of mine so he can tap the gas

what EXACTLY am i looking for- heat, noise what????????
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Old 09-17-2008, 01:48 PM   #8
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An easy way to discover if you have a exhaust leak is to briefly cover the tail pipe exhaust hole with a rag in your hand. Plug the hole for a second, you will have to push hard to seal it completely, but listen for air blowing by somewhere forward of where you are. If you have air hissing noise coming out forward of you, you have a leak. It will be fairly loud and easy to pinpoint the location where the leak is.
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Old 09-17-2008, 04:26 PM   #9
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thanks but is that safe ^^^ for me AND the car
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Old 09-17-2008, 08:06 PM   #10
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Sounds weird but I do the cigarette test around flanges.
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Old 09-17-2008, 08:29 PM   #11
STINOMORMONEY
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^^ ha nice, dont smoke, but dont see why i couldn't start
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Old 09-25-2008, 05:18 PM   #12
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Quote:
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thanks but is that safe ^^^ for me AND the car
pefectly ok to do, just don't hold it too long, you will get burned
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Old 09-25-2008, 05:21 PM   #13
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Exhuast leak:
Sluggish when the turbo is not even boosting
Loss of gas milage
Whistle/flutter type noise

Boost leak:
When hitting boost, normal levels of boost are not there
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Old 04-11-2009, 01:09 AM   #14
Fleckerballs
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the whistle/flutter noise can be mistaken as an exhuast leak can also be the wastegate flutter depending upon your setup
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Old 04-11-2009, 01:48 AM   #15
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Quote:
Originally Posted by Fleckerballs View Post
the whistle/flutter noise can be mistaken as an exhuast leak can also be the wastegate flutter depending upon your setup
It's appreciated that you attempted to help, but you just brought back a very old thread...
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Old 04-11-2009, 12:44 PM   #16
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Quote:
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It's appreciated that you attempted to help, but you just brought back a very old thread...
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