Thread: Engine Knock

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  1. #1 Engine Knock 
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    Could uour engine on one of these newer cars knock without throwing any codes? It sounds like a bearing is bad the car has 125,000 miles on it. I have already replaced the the pullys to keep the belts tight because one of them where jumping. Does anyone know about how long the bearings last on the power stearing pump?
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  2. #2 Re: Engine Knock 
    GTP Level Member 01gpgt01's Avatar
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    yeah it can knock with no code. It could be a bearing or a cracked flex plate. Mech stethoscope is what id start with
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

    2009 Hummer H3 Solar flare premium
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  3. #3 Re: Engine Knock 
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    Ok so i just watched a video and I think it sounds more like the supercharger then a rod knocking but i am going to try to get a video of the sound up tomarrow.
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  4. #4 Re: Engine Knock 
    I live here. SlowNA06's Avatar
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    Sounds like a shovel being dragged through gravel? supercharger bearing.
    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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  5. #5 Re: Engine Knock 
    Moderator dsmuts's Avatar
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    Pull the sc belt off and see if it goes away
    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
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  6. #6 Re: Engine Knock 
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    I thought about that did not know if it would run with the belt off the supercharger.
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  7. #7  
    LaBarge Supercharged sseilmnop's Avatar
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    It will run. Don't prevent the supercharger pulley from spinning.
    Adapters, Phenolic Intercoolers, Supercharger Parts & TVS2300
    http://stores.ebay.com/QualitySuperchargers
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  8. #8 Re: Engine Knock 
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    Well it spun a bearing. Is there someplace i can get a performance short block from someone other then zzp?
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  9. #9  
    GrandPrix Junkie Bluemagic's Avatar
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    Junkyard is your cheapest and work from there.
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