Thread: Connecting rod slap or knocking?

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  1. #1 Connecting rod slap or knocking? 
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    Hey guys ive been experiencing some ticking sound in my engine i did wat some threads i read to do like running seafoam in it and looking around with a screw driver where the sound was coming from... Well i narrowed it down to the sound comming from my oil pan like a rattle/ knocking noise.. This just randomly started to happend.. Well also whats weird is im not getting any extra kr from this knocking noise in my engine and also wat i notice is wen im doing 60 mph let say and i let off the gas and just coast, my rpms jump from 1800 to 1200 with a second or two between it .. Wat could this be ? I just wanted to see if anyone experience this before? Thanks
    Steph
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  2. #2 Re: Connecting rod slap or knocking? 
    The Blue One blueguy's Avatar
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    Video it.

    And post it.
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  3. #3 Re: Connecting rod slap or knocking? 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Quote Originally Posted by bluegtp91 View Post
    Video it.

    And post it.
    = profit.

    SMGPFC Member #1
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  4. #4 Re: Connecting rod slap or knocking? 
    Turbo is the way to go. BillBoost37's Avatar
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    Most likely that rpm thing you are noticing is normal and you are hyper sensitive looking for stuff.

    The noise.. could be a flex, etc. Have you checked oil pressure?
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  5. #5 Re: Connecting rod slap or knocking? 
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    Noo i would i check oil pressure ?
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  6. #6 Re: Connecting rod slap or knocking? 
    Turbo is the way to go. BillBoost37's Avatar
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    With a manual gauge
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  7. #7 Re: Connecting rod slap or knocking? 
    The Blue One blueguy's Avatar
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    Video?
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  8. #8 Re: Connecting rod slap or knocking? 
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    Video is coming guys , it will be up tomarrow hopefully im realy busy been working 14 hour shifts lol but yea ill try to post tomarrow soo check up then. thanks
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  9. #9 Re: Connecting rod slap or knocking? 
    Because Wet Leaves Hippo Machine's Avatar
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    Grand Prix Rod Knock 3800 3.8L V6 - CONFIRMED - YouTube

    This right here is a video of the knocking of the rods ()

    Yea.... I fixed it now but you dont want that **** happening.


    iLoveSpade
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  10. #10 Re: Connecting rod slap or knocking? 
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    Nahh mines not that bad , its like a cold knock to me like cold start up but it always does it cold or warm
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  11. #11 Re: Connecting rod slap or knocking? 
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    Hey i got the video and i also post my tc problem in it too. Tell
    Me what u guys think of both thanks. Gtp knock noise - YouTube
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  12. #12 Re: Connecting rod slap or knocking? 
    The Blue One blueguy's Avatar
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    That's not flex plate related, 99.9% of the time, the flex plate noise goes away under throttle.

    Pull off your valve covers...check your rockers...one could be loose.

    Mods?

    Also...how do you spark plugs look? What plugs are you running?
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  13. #13 Re: Connecting rod slap or knocking? 
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    Plugs havent checked yet.. And im running the al 104 and anyone know about the tc issue? Lol
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  14. #14 Re: Connecting rod slap or knocking? 
    I live here. siLversLeigh's Avatar
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    ok I'll bite, wtf is rod slap?
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  15. #15 Re: Connecting rod slap or knocking? 
    GrandPrix Junkie machinegunsquid's Avatar
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    Not sure about the TC issue, but it shouldnt matter, cause you oughta be doing burnouts everywhere...XD

    Obviously, it's only occuring on one cylinder...

    Might be a tiny little piece of something in one cylinder (spark plug, chipped piston) Thus causing piston slap. Best bet is to pull the plugs and see how they look.

    Also, doesnt sound nearly nasty enough to be rod knock....

    Oh, and its Piston Slap, and rod knock....And I doubt you'd get a good KR reading in park, lightly revving it, you need to have the engine under load.

    "**** bills. You can live in your car but you can't race your house" -dsmuts
    Want her to stop when she's not looking karate chop her in her crotch that should quiet her for a bit or at the very least put a smile on your face -REDCOMPG
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  16. #16 Re: Connecting rod slap or knocking? 
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    I had a chipped piston and wen that happend my gauge showed me 275278383misfires and 20,0+ kr soo its not piston chip because the power is still there as usual ... Ill have to see and pop the valve cover..
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  17. #17 Re: Connecting rod slap or knocking? 
    The Blue One blueguy's Avatar
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    Pull.




    Your.




    Spark.




    Plugs.

    You also didn't answer me...what mods do you have on the car?
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  18. #18 Re: Connecting rod slap or knocking? 
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    The 3.4 setup sorry man lol headers , 3.4 pulley . Overkill pcm ... Ummm ubend delete . K&n ...104 plugs .. And yea man ill bee pulling them tonight or this weekend ...
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  19. #19 Re: Connecting rod slap or knocking? 
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    Alright heres a latest video with it apart : Gtp noise part 2 - YouTube
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  20. #20 Re: Connecting rod slap or knocking? 
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    As for spark plugs their mint . Nothing showing anything . Looks like its running good
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