Thread: sounds like a washing machine agitating

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  1. #1 sounds like a washing machine agitating 
    SE Level Member kimpossibull's Avatar
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    cant think of a better description yet. But I've heard it twice now and only when it's the first start up of the day. It disappears after about 3 to 5 mins. I just became aware of this so I'm looking for suggestions on how to diagnose this. Idont know how long it's been doing it cuz I normally have the stereo playing. It is kinda muffled but I hear it coming from the engine area (in the center) when I'm sitting in the driver's seat. I'm not overheating. I'm changing air filter today after work. Haven't changed gas. No check engine light. No smells.
    Tell me how to proceed. In the meantime I'll try to think of a better sound description or record it.
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  2. #2 Re: sounds like a washing machine agitating 
    GrandPrix Junkie
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    Probably just the typical IAC noise until it warms up. Usually does it when it's colder out. Do you have the stock airbox on it or an aftermarket air intake?
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  3. #3 Re: sounds like a washing machine agitating 
    GrandPrix Junkie idrivejunk's Avatar
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    Theres a total of six parts, all with rubber pieces, that hold the engine and transmission in the car. All that stuff is shrunk up when cold. Making more potential for rattles due to slack in partially worn out stuff until things warm up.

    Give it a little gas with foot holding brake. If the noise changes, could be some mounting component is getting sloppy. If it does the same thing in neutral, probably not that. When its cold and I crank up my 99 GTP coupe... as it warms up... First the exhaust leak noise quits. Then the air intake (open cone filter) cold startup noise fades. Then after it reaches full temp, the power steering fluid grows enough so the pump don't whine when turning left.

    Mine has 297K on it and may have a worn out noisy S/C coupler. Thats a grumbly noise up top, I think.

    Anyhow yeah, if all the ignition parts are of unknown age as are engine mounts... it may not be running too smooth right at first, making lots of racket. How cold are we talkin?

    Using an automotive stethescope can be helpful and requires utmost caution around moving parts on a FWD car, but thats how to find noisy pulley bearings and such.
    All Grand Prix, all the time. 69 Model J, 99 GT & GTP coupes. All junk, haha.
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