Engine noise - 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 08-22-2011, 07:48 PM   #1
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Default Engine noise

Posted on another forum but thought I might get some more help here. Ok, I'll try and be as specific as I possibly can. Its on a 98 SSE, upon initial start up (after its been sitting for atleast eight hours) the engine makes a loud noise as if a pulley has a bad bearing. Only problem is its not coming from that side, it comes from where the air intake is. It only does it for about 30 seconds and then goes away. If I turn the car off and start it back up it does not do it, only when the engine is cold. Took it to a mechanic and I was told its normal, I understand that when the engine starts its gonna make noise from sucking in the air but nothing like what I hear. I looked all over and found a tear in the intake tube, replaced that but the noise is still there. I have a cold air intake on it which only magnafies the sound but even with the stock intake on it, its still quite noticeable. I'd appreciate any suggestions, I'd rather have people look and admire then look and wonder if the car will blow up or not. Hope I was detailed enough.

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Rob
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Old 08-22-2011, 09:34 PM   #2
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That'* your idle air control. Think of it as your choke. Yes, it'* normal.
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Old 08-23-2011, 09:44 AM   #3
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yea, its normal. all of them do it to a degree. i gutted my airbox and i had the same reaction lol
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Old 08-23-2011, 09:47 PM   #4
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You should hear mine.
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Old 08-24-2011, 02:43 PM   #5
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Thanks for the replies, good to know its nothing major.
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Old 08-24-2011, 03:27 PM   #6
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Nothing to worry about. The more you mod, the louder it will get. Mine sounds like an industrial vacuum cleaner.
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Old 08-24-2011, 03:40 PM   #7
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Agreed, but I didn't notice mine until I threw the intake on my car. Odd that you would notice it so much, unless your intake is not stock...
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Old 08-24-2011, 03:44 PM   #8
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The stock air box has baffles in it to quite that down.
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Old 08-24-2011, 10:50 PM   #9
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Quote:
Originally Posted by Danthurs View Post
The stock air box has baffles in it to quite that down.
You're telling me. Now that the mornings are getting cooler, my airbox just gets louder and louder. If I hadn't heard louder things last winter, I'd be posting some HELP! threads too.
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