98 SE, weird sucking/ whislting sound... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-17-2004, 03:29 PM   #11
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Default Re: 98 SE, weird sucking/ whislting sound...

Quote:
Originally Posted by BonnyLover
Recently bought this awesome 98 SE and noticed, during acceleration, I hear this sucking whislting sound coming from below. It progresses through the first two or three gears (auto), then seems to go away.
Rather than a sucking sound, I'm wondering if what you're hearing is actually a leak from an overpressurized exhaust rather than a vacuum source. Maybe the convertor or muffler is partially clogged...? My old Cutlass used to do this for many years before its convertor finally got completely plugged up.
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Old 06-17-2004, 11:59 PM   #12
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Quote:
Originally Posted by Drifter420
Can you reproduce the sound a lil while in park and pull on the Throttle linkages @ the TB to rev the engine ( burp the engine ) to see if it produces the noise you're refering to?
Well, tonight, on the way home from work, I put her in neutral while crusing, let the engine go to a complete idle, revved the engine and was able to reproduce that sound.

I also sat in the garage, put it in neutral, and revved, also was able to reproduce the sound. I was able to hear it better in the garage, very odd sound. Like a high pitched sucking bong type whistle, would be the best way to describe it. And, I only hear it at the lowest part of the rev. The sound goes away once I get up to about 2000 RPMs.

Hope that helps.
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Old 06-18-2004, 01:57 AM   #13
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I get this too. Its like Low whitsle, as if you were blowing into a bottle. It went away for the most part after I gutted the Airbox. the Air box is full of these tubes that create the whistle.
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Old 06-18-2004, 02:22 AM   #14
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Quote:
Originally Posted by jhp027
I get this too. Its like Low whitsle, as if you were blowing into a bottle. It went away for the most part after I gutted the Airbox. the Air box is full of these tubes that create the whistle.
Airbox, you mean where the air filter is, etc.?

And thanks
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Old 06-18-2004, 08:53 AM   #15
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If you're able to reproduce it in your garage.. just remove the accordian tube from the TB ( loosen 1 screw and pull out ).. if the noise persist then it'* elsewhere.. and if it'* from the intake you can hear it louder thru the TB.. try that.. more then likely it'* the intake.. but thats the easiest way to ensure its just that and nothing else
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