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[Z06] Whistle noise from engine

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Old Oct 9, 2002 | 08:30 PM
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Default Whistle noise from engine

I am getting an occasional high pitched whistling noise from the engine compartment. It sounds like air passing over an orifice, but I can not locate the source. Antone else experience a similar noise?
2001 Z06 with 6,500 miles
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Old Oct 9, 2002 | 10:03 PM
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Default Re: Whistle noise from engine (E RACER)

Just so happens that I came across this ten minutes ago. Scroll down to whistle noise.

http://forums.corvetteforum.com/zerothread?id=404544

I hope this isn't your problem.


[Modified by GTs 58, 11:09 PM 10/9/2002]
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Old Oct 9, 2002 | 10:06 PM
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Default Re: Whistle noise from engine (GTs 58)

HMMM maybe your car is supercharged and you just didnt know it! :D
Hope everyting is ok! :cheers:
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Old Oct 10, 2002 | 10:51 AM
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Default Re: Whistle noise from engine (GTs 58)

thanks GTs 58

it makes it a lot easier to have this information in hand when i go back to the dealer.

WHISTLE NOISE FROM INTAKE MANIFOLD/THROTTLE BODY

This is a technical service bulletin for repair of this problem, it is not a recall. It covers 2001 Corvettes LS1, LS6 engines. TSB # 02-06-01-021
Some owners may comment on a whistle noise coming from either the intake manifold or the throttle body. The noise is most noticeable between 1100 and 2000 RPM.
This bulletin calls for replacing the intake manifold.

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Old Oct 10, 2002 | 11:09 AM
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Default Re: Whistle noise from engine (E RACER)

thanks GTs 58

it makes it a lot easier to have this information in hand when i go back to the dealer.

WHISTLE NOISE FROM INTAKE MANIFOLD/THROTTLE BODY

This is a technical service bulletin for repair of this problem, it is not a recall. It covers 2001 Corvettes LS1, LS6 engines. TSB # 02-06-01-021
Some owners may comment on a whistle noise coming from either the intake manifold or the throttle body. The noise is most noticeable between 1100 and 2000 RPM.
This bulletin calls for replacing the intake manifold.
Since my car is out of warranty. Will the dealer still do this for free?
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Old Oct 10, 2002 | 05:20 PM
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Default Re: Whistle noise from engine (Zee Freak)

Zee Freak
Are you having the same whisling noise? My whistling comes and goes depending on RPM, temp of engine, and humidity.
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Old Oct 10, 2002 | 06:25 PM
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Default Re: Whistle noise from engine (E RACER)

Zee Freak
Are you having the same whisling noise? My whistling comes and goes depending on RPM, temp of engine, and humidity.
Ya. Its sounds like a leaky intake tube or something. :confused:
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Old Oct 10, 2002 | 07:52 PM
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Default Re: Whistle noise from engine (E RACER)

I am getting an occasional high pitched whistling noise from the engine compartment. It sounds like air passing over an orifice, but I can not locate the source. Antone else experience a similar noise?
2001 Z06 with 6,500 miles
Mine has done this since new. It is most likely caused by the intake manifold issue described in the TSB. Since I know what the cause is, it doesn't bother me so much. I'm wondering if I should just get it taken care of though... :confused:
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Old Oct 10, 2002 | 10:57 PM
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From: Gilbert Arid zona
Default Re: Whistle noise from engine (Zee Freak)

thanks GTs 58

it makes it a lot easier to have this information in hand when i go back to the dealer.

WHISTLE NOISE FROM INTAKE MANIFOLD/THROTTLE BODY

This is a technical service bulletin for repair of this problem, it is not a recall. It covers 2001 Corvettes LS1, LS6 engines. TSB # 02-06-01-021
Some owners may comment on a whistle noise coming from either the intake manifold or the throttle body. The noise is most noticeable between 1100 and 2000 RPM.
This bulletin calls for replacing the intake manifold.

Since my car is out of warranty. Will the dealer still do this for free?
Even if it's out of warranty I sure in hell would make em fix it for free. :yesnod:
My Stepson was working at the GM Proving Grounds when they were testing the new C5 before production. He told me about all the problems they had with the Corvette during its testing. The 97 still had a few of these issues that had not been fixed and GM went into production knowing there still were a few bugs left to deal with.
If there is a defect in any part, I would for sure make them fix the problem at no cost to me, in or out of warranty.
:cheers:
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Old Oct 11, 2002 | 07:57 AM
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Default Re: Whistle noise from engine (E RACER)

Mine does this occasionally. It doesn't bother me. But is there any other issues that go along with this? i.e. performance or reliability issues? If there aren't, then I'm not going to worry about it. I don't want the dealers mucking around with it. They will probably break 4 other things while fixing that one.
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Old Oct 11, 2002 | 10:01 AM
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Default Re: Whistle noise from engine (Swimmer)

Mine does this too, but it operated so infrequently within the conditions that create the whistle, that I just don't worry about it. If there was a benefit to changing the manifold (ex, the '03 manifold was better), then I might make the dealer do it, but it's not worth the hassle right now.
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