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Whats with my Evo!?!?

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Old Jun 8, 2006 | 01:25 PM
  #31  
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From: GA
Get a piece of pipe with about 3-4" diameter and suitable length. Put the pipe to your ear and the other end to the engine to isolate the sound. Whatever pipe substitute is good.
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Old Jun 8, 2006 | 01:33 PM
  #32  
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From: SL,UT
or a cut piece of garden hose
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Old Jun 8, 2006 | 01:45 PM
  #33  
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Originally Posted by Wheelhaus
Process of elimination, son.

If you can repeat the sound when the car is at a standstill then it has absolutely nothing at all to do with the drivetrain (TC).

If you can repeat the sound as stated above (at standstill) then someone can poke and prod under the hood to see if the source can be found.

the supercharger sound you're talking about, its a mechanical whining correct?

does it happen ONLY in boost of any level or is it combined with going beyond a certain RPM? if it occurs in boost ONLY at any RPM, then it likely has to do with the turbo/intake tract. if it's RPM dependant, then it's likely something mechanical (belt or something that spins with engine RPM).

I've never experienced a dying turbo, but could it be the source of the noise?

No This only Happens When Under boost.. With out Boost it Sounds Fine... Dose anyone know what it can be?
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Old Jun 8, 2006 | 01:51 PM
  #34  
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Well, I would assume if it only happens under boost then start listen from your turbo straight to your intake with the method I explained earlier. As someone said, it maybe the sound of a dieing turbo, even though I've never heard one personally.
Take off your intake and check for play on the compressor\impeller shaft.
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Old Jun 8, 2006 | 01:54 PM
  #35  
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From: GA
I used to have a supercharger in another car and I know the whirring sound. It would almost indicate something spinning, again maybe turbo related.
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Old Jun 8, 2006 | 01:55 PM
  #36  
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I think you should do a pressure leak test. I had a similar noise and thought something was wrong with my turbo. Turned out I had a boost leak from when I installed my FMIC. When it started to boost up, it made a strange sound (turned out to be the leak). If you do not want to do a leak test, tighten your clamps.

SF
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Old Jun 8, 2006 | 02:21 PM
  #37  
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I just Found out something new... It Smells SOOO much like it Smells soo Rich.When its on
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Old Jun 8, 2006 | 03:08 PM
  #38  
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From: FAAAR FAAAR AWAAY :)
Originally Posted by MonsterEVOO
I just Found out something new... It Smells SOOO much like it Smells soo Rich.When its on
You most likely have boost leak in one of the couplers, tight them all up, very simple thing to do and then let us know. While you there check the belt tension and condition.
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Old Jun 8, 2006 | 03:16 PM
  #39  
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From: Tulsa, OK
i hate our transfer cases......mines gone.....

-nick
Originally Posted by 4g63skeet
maybe transfer case whine and yeah take it to the dealer
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Old Jun 8, 2006 | 03:22 PM
  #40  
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From: houston
you're turbo is blown.

late edit: since you have an aftermarket air filter, it's easy enough to check, pull your intake piping to the turbo inlet and look for rub marks between the compressor wheel and the compressor housing. It's the infamous "deathwhine" that you are hearing.

Last edited by dubbleugly01; Jun 8, 2006 at 03:29 PM.
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Old Jun 8, 2006 | 03:45 PM
  #41  
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Originally Posted by dubbleugly01
you're turbo is blown.

late edit: since you have an aftermarket air filter, it's easy enough to check, pull your intake piping to the turbo inlet and look for rub marks between the compressor wheel and the compressor housing. It's the infamous "deathwhine" that you are hearing.
k lets say my Tubro is Blown... And Warranty dosnt cover it How much would it cost?
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Old Jun 8, 2006 | 04:15 PM
  #42  
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did it sound like a circular saw? One time I could have sworn my car sounded like that but now its fine, so maybe it was another car on the road.
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Old Jun 8, 2006 | 04:17 PM
  #43  
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i hate our transfer cases......mines gone.....

-nick
Originally Posted by 4g63skeet
maybe transfer case whine and yeah take it to the dealer
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Old Jun 8, 2006 | 04:24 PM
  #44  
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Originally Posted by Amazin' Wasian
i hate our transfer cases......mines gone.....

-nick
I have said b4 that its not my T C i just Changed it maybe 3 month ago.. and i havent Gunned the car that much only once in a while
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Old Jun 8, 2006 | 04:31 PM
  #45  
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From: 1 of 5 boroughs
what kind of diverter valve(bov) you have? if plastic, check that too.
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