Thread: Engine Noise

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  1. #1 Engine Noise 
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    OK, I have been having this engine noise for about 500 miles. SO about 3 or 4 weeks now. I am hearing a grinding/bearing noise. The issue is that it is not constant. I never hear it at idle and I hear it at WOT sometimes. When I do it is obviously loud. I hear it alot when the engine is cold and I am cruising at 80 with the tcc locked. As soon as I let off the gas and unlock the tcc it is gone until the tcc locks up again. I can vary the tps and under very low tps, it is gone. At about 10% or so, I can hear it. I hear it less when the car is warm, but the sound is still there. I am thinking about driving the car with out the s/c belt to see if I can narrow it down, but i am unsure it is a pulley or a bearing in the s/c because it does not happen all the time. Can I get some direction on where to look?
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    2003 GTP, L36 swap, TOGs extremes, ZZP stage 3 heads, SSIC, ZZP Ported Blower, 3.0/3.2 pulley, XP hot cam w/ 105#, 42.5# injectors, N* w/ 85mm MAF, Meziere Water Pump.
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  2. #2 Re: Engine Noise 
    GXP Level Member SlowM90's Avatar
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    Sounds like the SC bearings...but im not a pro at stuff like that! Mine did the same thing and I changed the SC oil and havent had a problem since. I hope this helps a little!! if not I offer free high fives....lol
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  3. #3 Re: Engine Noise 
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    ok, it is a start. Pull off belt and take it for a drive. Sound goes away and it is either blower or pulley related
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    2003 GTP, L36 swap, TOGs extremes, ZZP stage 3 heads, SSIC, ZZP Ported Blower, 3.0/3.2 pulley, XP hot cam w/ 105#, 42.5# injectors, N* w/ 85mm MAF, Meziere Water Pump.
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  4. #4 Re: Engine Noise 
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    ok, I checked the fluid of the blower, it was just under the threads. I topped it off anyways. I took it for a ride and still happened. So, I took off the belt to the blower and still made the same sound. Any one else have any suggestions?
    FOR SALE
    2003 GTP, L36 swap, TOGs extremes, ZZP stage 3 heads, SSIC, ZZP Ported Blower, 3.0/3.2 pulley, XP hot cam w/ 105#, 42.5# injectors, N* w/ 85mm MAF, Meziere Water Pump.
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  5. #5 Re: Engine Noise 
    GT Level Member t24moore's Avatar
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    Transmission. There is nothing else that can make the grinding noise. If it was consistent with the RPMs then I would say its engine related but its not.
    Comp Turbo 6765 T4-ST5-A2A IC-Ported Heads-Custom Turbo headers-80 lb inj-F-Body UIM and LIM-AEM WB, TEP trans w 1" chain and Circle D TC, Dual 255s, Bilstien Struts
    WHY IS EVERYONE SO OPPOSED TO DOING A COMPRESSION TEST TO TROUBLESHOOT PROBLEMS?
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  6. #6 Re: Engine Noise 
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    That was something I did not want to hear
    FOR SALE
    2003 GTP, L36 swap, TOGs extremes, ZZP stage 3 heads, SSIC, ZZP Ported Blower, 3.0/3.2 pulley, XP hot cam w/ 105#, 42.5# injectors, N* w/ 85mm MAF, Meziere Water Pump.
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  7. #7 Re: Engine Noise 
    The Blue One blueguy's Avatar
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    Quote Originally Posted by Damojo2003 View Post
    That was something I did not want to hear
    Sometimes you gotta prepare for the worst too...especially with your mod list...any little blip of something could send everything in a erratic downward spiral...OR NOT...Ever think it could be just the transmission needing serviced...might be a nice thing to do ANYWAY
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  8. #8 Re: Engine Noise 
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    it is a built trans with about 20k on it and the fluid looks good. To me it sounds like an alternator bearing, but it does not make the sound at idle. I do think it is getting worse, what ever it is. It is happening more often. Well, either I find out before it breaks or after. I hope before.

    What sounds are made when the TCC starts to go?
    FOR SALE
    2003 GTP, L36 swap, TOGs extremes, ZZP stage 3 heads, SSIC, ZZP Ported Blower, 3.0/3.2 pulley, XP hot cam w/ 105#, 42.5# injectors, N* w/ 85mm MAF, Meziere Water Pump.
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  9. #9 Re: Engine Noise 
    GT Level Member t24moore's Avatar
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    Honestly 20k is alot of miles depending on how you drive for your mod list. Both of my buddies built trannies took a dump with waaaaay less than that. Im still on a stocker w shift kit for over 3 years now DD.....go figure. Eventho mines is on its way out the door I think because if I try to floor it or burnout I get 14* of KR and it feels like the car is bogging.
    Comp Turbo 6765 T4-ST5-A2A IC-Ported Heads-Custom Turbo headers-80 lb inj-F-Body UIM and LIM-AEM WB, TEP trans w 1" chain and Circle D TC, Dual 255s, Bilstien Struts
    WHY IS EVERYONE SO OPPOSED TO DOING A COMPRESSION TEST TO TROUBLESHOOT PROBLEMS?
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  10. #10 Re: Engine Noise 
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    I really hope it is not the trans. If it is the trans, I will have to part with the car.
    FOR SALE
    2003 GTP, L36 swap, TOGs extremes, ZZP stage 3 heads, SSIC, ZZP Ported Blower, 3.0/3.2 pulley, XP hot cam w/ 105#, 42.5# injectors, N* w/ 85mm MAF, Meziere Water Pump.
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