Turbo whistle again?

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Dec 6, 2005 | 01:10 AM

dtownhotcorner

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1st Gear

Joined: Oct 2005

Posts: 42

From:

Turbo whistle again?

I just recently implanted a new turbo into my 97 1.8T (still K03). before i did that i noticed a slight whistle comming from the old turbo and noticed a drastic loos of power thus realizing that i needed a new one... however i just got one as of 1k miles ago and there it is again. i hear that darn whistle again but i seem to have the same amount of power as i normally have with a healthy turbo however i just had a cat. issue and it needed to be re-welded back together and i am now noticing a fairly long miss between 2300and 3400 at 50% pedal. after 3500ish it seems to go away. both of these are not serious yet nor do i hope they will get serious. i am still in highshcool and i do not wish to keep borrowing money from my bank account that i am using for college. any short and easy answers please let me know.

thanks
Alex Chryst

Dec 6, 2005 | 02:05 AM

kextyn

1st Gear

Joined: Aug 2005

Posts: 298

RE: Turbo whistle again?

Just guessing here but could it be the diverter valve? Do you have a boost gauge? That would be a good thing to have when diagnosing issues with your turbo.

Dec 6, 2005 | 11:52 AM

GraffixWB

1st Gear

Joined: Dec 2004

Posts: 361

From:

RE: Turbo whistle again?

probably is a diverter. go get a forge diverter and put it in. you'll need one down the road anyway. I had the same thing. Did you keep your old turbo? check for chaft play and slop. if it does not have that then the turbo is still good.

Dec 6, 2005 | 12:05 PM

Infinite Ride

1st Gear

Joined: Nov 2005

Posts: 59

From:

RE: Turbo whistle again?

1. Check the DV.I'm 80% DV is damaged/broken

2.Check your turbo hoses,just in case

Dec 6, 2005 | 02:50 PM

18T

4th Gear

Joined: Oct 2004

Posts: 5,441

From: Chicago Burbs /// KOTH 06'

RE: Turbo whistle again?

1. Get rid of the BPV and get a normal DV.

2. Your turbo is supposed to whistle, well its more like a Hissing sound mixed with a whistle i guess. . Its the sound it makes when it spools.

3. I dont know about your power loss. Do you have a boost gauge? If not get one and then get your codes scanned.

Jan 3, 2006 | 03:24 AM

cinescapist

1st Gear

Joined: Dec 2005

Posts: 46

RE: Turbo whistle again?

do you hear this turbo whistle/hissing sound inside the car while your driving? also, is it ok if you hear it when you press the gas and hit 25mph or so and continue to hear it while you press the gas (and stay above 25mph or so)? I hear like a faint whirring/humming noise that sounds a bit high pitched...

thanks...

Jan 3, 2006 | 03:31 AM

onepoint8tee

Site Moderator

Joined: Sep 2005

Posts: 13,664

RE: Turbo whistle again?

Quote:

ORIGINAL: dtownhotcorner

I just recently implanted a new turbo into my 97 1.8T (still K03). before i did that i noticed a slight whistle comming from the old turbo and noticed a drastic loos of power thus realizing that i needed a new one... however i just got one as of 1k miles ago and there it is again. i hear that darn whistle again but i seem to have the same amount of power as i normally have with a healthy turbo however i just had a cat. issue and it needed to be re-welded back together and i am now noticing a fairly long miss between 2300and 3400 at 50% pedal. after 3500ish it seems to go away. both of these are not serious yet nor do i hope they will get serious. i am still in highshcool and i do not wish to keep borrowing money from my bank account that i am using for college. any short and easy answers please let me know.

thanks
Alex Chryst

So you just replaced your turbo because of a loss of power???????? Was is diagnosed that way?? How many miles are on it??