| | Whistle Sound in Engine Bay at 50+mph |  |
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+4dreww SpaceBar Mr.Riviera racinfan 8 posters |
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racinfan
Addict
Name : Joe
Location : Cleveland, OH
Joined : 2007-02-05
Post Count : 567
Merit : 5
| | Subject: Whistle Sound in Engine Bay at 50+mph Tue May 15, 2007 8:30 pm | |
| Well here is certainly an odd one. I get a whistling almost tea kettle like sound coming from somewhere in the engine bay whenever I go over 50 mph. The noise is not affected by speed after 50 mph and engine rpm or boost has no effect on the sound. Before 50 there is no sound. I checked all of my vac lines and all seemed secure, I tightened the intake a bit more as well as my maf sensor. I've yet to test drive it after the tightening.
I'm really at a loss for what it could be.
Last edited by on Sun May 20, 2007 8:03 pm; edited 2 times in total | |
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Mr.Riviera
Expert
Name : Matthew
Age : 38
Location : Florida
Joined : 2007-01-17
Post Count : 4394
Merit : 101
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Tue May 15, 2007 8:36 pm | |
| do you have a sun roof? and does the a/c on or off make a difference? _________________ 1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily  | |
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racinfan
Addict
Name : Joe
Location : Cleveland, OH
Joined : 2007-02-05
Post Count : 567
Merit : 5
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Tue May 15, 2007 10:23 pm | |
| Yes I have a sunroof, the noise occurs with it open or closed and no diff with ac on/off.
I'm getting a bit of a knocking noise under load under about 2500rpm recently too. Possibly from gas that I got from a station I've never used before...the car starting whistling right after I got this gas.
I've also test driven the car after checking over the vac lines/intake and there is no change. Braking also has no effect. | |
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SpaceBar
Aficionado
Name : Patrick
Age : 38
Location : Quincy, MA
Joined : 2007-04-08
Post Count : 1199
Merit : 3
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Tue May 15, 2007 10:29 pm | |
| - racinfan wrote:
- Yes I have a sunroof, the noise occurs with it open or closed and no diff with ac on/off.
I'm getting a bit of a knocking noise under load under about 2500rpm recently too. Possibly from gas that I got from a station I've never used before...the car starting whistling right after I got this gas.
I've also test driven the car after checking over the vac lines/intake and there is no change. Braking also has no effect. This might not be it but I was getting a knocking noise too and it was my fenderwell lining that was loose and it was just rattling with acceleration. Could be worth it to check that out. | |
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dreww
Junkie
Location : Dallas
Joined : 2007-04-10
Post Count : 851
Merit : 9
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Wed May 16, 2007 1:55 am | |
| ive heard this too. It is VERY high pitched correct?
I would hear it when I would go in reverse. and also when rolling in drive (idle carrying you). As soon as I tapped the throttle, it was gone.
haven't heard it lately, even in reverse. never figured out what it was. | |
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racinfan
Addict
Name : Joe
Location : Cleveland, OH
Joined : 2007-02-05
Post Count : 567
Merit : 5
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Wed May 16, 2007 4:16 pm | |
| Here is an update, after about 70 miles of freeway driving today the noise stopped. I had popped the car into neutral and killed the engine and the noise did not change.
I'm pretty sure it's something in the left front corner of the car and I'll further update after I investigate. | |
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AA
Administrator
Name : Aaron
Age : 47
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18452
Merit : 252
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Wed May 16, 2007 4:49 pm | |
| Transmission whine? _________________ '05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch^^^ SOLD ^^^  '70 Ninety-Eight Holiday Coupe 455cid • 116k miles^^^ SOLD ^^^ | |
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urbsnspices
Fanatic
Location : CHICAGO, US of MFn America
Joined : 2007-02-08
Post Count : 336
Merit : 4
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Thu May 17, 2007 8:37 am | |
| Not sure what you mean by left corner, but maybe power steering. Maybe check the fluid which is like catfish noodling in an engine bay. | |
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1998rivman
Amateur
Joined : 2007-05-20
Post Count : 24
Merit : 0
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Sun May 20, 2007 3:53 pm | |
| How old are your brake pads? | |
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T Riley
Guru
Name : Travis
Age : 34
Location : Minnesconsin
Joined : 2007-02-08
Post Count : 5127
Merit : 10
| | Subject: Re: Whistle Sound in Engine Bay at 50+mph Tue May 22, 2007 12:41 am | |
| hmm i bet its from the 22's they seem to have that hangover edge maybe just that IDK haha JK | |
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