Guys i cant find my old thread but im at a problem,


I just need your feedback.... i have an 04' with mods. Yesterday i heard some loud howling from the turbo. I took all close items off ( intake, pipe to intake, couplers)

I listened, and during boost the howling starts. Its like a misguided or messed up spool up sound. I did check my shaft play it seems to be a little playfull, but im no expert. Is this the normal sound for a bad turbo? also the car only has 27,800 miles and it has cams, intake, uicp, licp, and boost controller, tbe, fp, and clutch. I will be checking TC but the noise comes no where from it. I was suggested that last thread but apparently that thread no longer exist or something.

Im worried because i saw blue smoke when it hits boost. I want to make sure its just the turbo. I am doing compression checks monday. The oil cap shows no signs of a bad head gasket but.... im new to evos.

 

I would say it is the Transfer case. First on the list. You are at about the mileage they take a dump. During boost is when you put the most engine power to the transfercase to "transfer" the motor power to the wheels. The transfer case is near the turbo. I say you don't need to do a compression test for this one. Are the ones thinking they have a bad turbo, actually finding a bad turbo? I think more likely a TC problem. TC's go bad alot, I don't think the turbos do. (A possibility for a bad turbo? YES) but look at the TC first. my 2c. People who say "Bad turbo" are in denial about a TC problem, and are looking at a cheaper fix for the howling................. I was there once as well. I also thought my spun-bearing-rod-knock was my radiatior fan chewing up an intake pipe!

 

yeah but how does the tcase make a howl in nuetral at minimal boost. Also i just too k the car for a ride and its not making the noise so often.

I had the intake off and the noise got much louder.

its coming from the turbo not t-case i did think the same thing

 

I wish it was the t-case in that case i have 2 spares...

 

buh-bump for some help

 

It might be your turbo then. If you can make the noise without a "load" on the TC,then I agree with you.............It can't be the TC. Scratch that off the list. Probably something simple. did you try a boost leak tester? Maybe got a small leak somewhere.

 

I redid all my piping just now lol same thing but it happens sparatically now.. .Its gotta be the turbo im gonna get one from my brother tomorrow....
thanks for the help bro

I also figured the tcase wouldnt cause blue smoke so i dunno

 

You are right. Case closed. (after a slight detour by me! )