Thread: Car sounds like crap after LIM Gasket install

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  1. #1 Car sounds like crap after LIM Gasket install 
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    after installing new lim gaskets my car has this loud noise coming through the throttle body, I thought it was a vacuum leak but i cant find any leaks with carb cleaner and it holds vac pressure just fine. while i was replacing the gaskets i replaced the plugs and wires aswell as made a custom intake and changed the sc coupler. Basically im looking for any ideas im lost. heres a video of what it sounds like. GTP Noise - YouTube
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  2. #2 Re: Car sounds like crap after LIM Gasket install 
    Killa Bee Scottydoggs's Avatar
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    open cone lets you hear a lot more of the inside of the engine, does the noise let up after the car warms up? if so its normal.

    or put your stock air box back on to make sure.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: Car sounds like crap after LIM Gasket install 
    I live here. SlowNA06's Avatar
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    No... that is literally the wrong noise. Um. It kind of sounds like a bad coupler?

    Or maybe your intake is vibrating in your fenderwell? It sounds like some hot and steamy metal-on-metal action. Plus a weird whining that sounds sorta like you don't have enough fluid in your power steering reservoir?
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
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  4. #4 Re: Car sounds like crap after LIM Gasket install 
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    Its not throwing any codes btw, i just replaced the coupler and i defiantly doesnt sound like it did with the blown coupler (it sounded like rocks in the sc)
    As for the intake vibrating, it made the same noise with just the stock intake tube on the tb
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  5. #5 Re: Car sounds like crap after LIM Gasket install 
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    im gonna let it run for awhile and see what happens
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  6. #6 Re: Car sounds like crap after LIM Gasket install 
    Moderator dsmuts's Avatar
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    Sounds like power steering.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  7. #7 Re: Car sounds like crap after LIM Gasket install 
    club of used to own a gp 99prixgt's Avatar
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    take off the s/c belt and see if it goes away
    16' wrx sti- stock
    06 Spice Red GTO- m6/exhaust/tune/suspension/377whp-383tq-sold
    99 silvermist gp gt-g5/xp/IC/3.0mps-parted&sold
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  8. #8 Re: Car sounds like crap after LIM Gasket install 
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    Quote Originally Posted by dsmuts View Post
    Sounds like power steering.
    i used a turkey baster to get some of the ps fluid out and its jet black.
    Should i just get as much as i can out with the baster and dump new fluid in or is there a way to drain it?
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  9. #9 Re: Car sounds like crap after LIM Gasket install 
    Moderator dsmuts's Avatar
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    you could take the lines off the rack but that's a lot of work. I'd take as much out of the res as i could and then refill with new.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  10. #10 Re: Car sounds like crap after LIM Gasket install 
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    i noticed it had a whine when you steer and sorta does at idle but thats not the weird noise i was trying to show in the video.
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  11. #11 Re: Car sounds like crap after LIM Gasket install 
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    The whine or the intake noise?
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  12. #12 Re: Car sounds like crap after LIM Gasket install 
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    the intake noise is what im trying to figure out, it should be louder because its a short ram intake. it sounds fine at WOT but at idle to like 3grand it sounds like a dying cat
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  13. #13 Re: Car sounds like crap after LIM Gasket install 
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    it should sound more like this Grand Prix GTP with cold air intake - YouTube
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  14. #14 Re: Car sounds like crap after LIM Gasket install 
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    Welcome to the world of 3800 intake noise.
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  15. #15 Re: Car sounds like crap after LIM Gasket install 
    GT Level Member Remnant King's Avatar
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    What the hell? My intake noise sounds nowhere near that lol.

    That sounds so badass though.


    2000 Midnight Blue Grand Prix GTP Coupe
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  16. #16 Re: Car sounds like crap after LIM Gasket install 
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    maybe its normal idk? on the downside of things the lim gaskets are leaking again!
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  17. #17 Re: Car sounds like crap after LIM Gasket install 
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    Its in a garage, that amplifies the noise.

    Mine is quite loud as well.
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  18. #18 Re: Car sounds like crap after LIM Gasket install 
    GT Level Member Remnant King's Avatar
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    I was talking about the second video he posted.


    2000 Midnight Blue Grand Prix GTP Coupe
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  19. #19 Re: Car sounds like crap after LIM Gasket install 
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    if your talking about my car, it sounds the same outside.
    I just cant see that as being normal, that intake noise is about 4-5 times louder than the exhaust in person. its to the point it get peoples attention in other cars.
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  20. #20 Re: Car sounds like crap after LIM Gasket install 
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    Put your stock intake on and see if it goes away.
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