I'm about to give up.please help!!!! - FirebirdV6.com/CamaroV6.com Message Board

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  • #16
    Re: I'm about to give up.please help!!!!

    Originally posted by A fireman View Post
    is the vibe progressive to 3k or nothing and hard on at 3k?
    the vibrations begin slightly at about 500rpms before 3000rpms,so it's a presice vibration,and i have not gotten a single misfire code at all,what about the balancer,wouldn't that vibrate widely through the rpms,because ths is really at one spot.

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    • #17
      Re: I'm about to give up.please help!!!!

      Originally posted by Richardcoelho View Post
      the vibrations begin slightly at about 500rpms before 3000rpms,so it's a presice vibration,and i have not gotten a single misfire code at all,what about the balancer,wouldn't that vibrate widely through the rpms,because ths is really at one spot.

      Does the engine smooth out if you go past 3000?

      Think of your engine like a ceiling fan. If it is a little out of balance you won't notice it wobble much on low. But the faster it goes the more you will see it wobble. The same thing happens in your engine if it is out of balance.

      If it smoothes out past 3000 it is probably not out of balance.

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      • #18
        Re: I'm about to give up.please help!!!!

        Originally posted by Cool81z28 View Post
        Does the engine smooth out if you go past 3000?

        Think of your engine like a ceiling fan. If it is a little out of balance you won't notice it wobble much on low. But the faster it goes the more you will see it wobble. The same thing happens in your engine if it is out of balance.

        If it smoothes out past 3000 it is probably not out of balance.
        it does smooth out after 3000,and i thin it gets a bit rough at like 5300rpms not much though,but just like wheels that are off balance,they shake at a certain speed like 65mph or so but lower or higher speeds they are fine.

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        • #19
          Re: I'm about to give up.please help!!!!

          Do you feel the rattle or hear? Check the exhaust. If it's loose, it will be make a load rattling noise under load. Just throwing it out there.

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          • #20
            Re: I'm about to give up.please help!!!!

            Originally posted by killerloop View Post
            Do you feel the rattle or hear? Check the exhaust. If it's loose, it will be make a load rattling noise under load. Just throwing it out there.
            nope the exhaust is fine,and i only feel it

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            • #21
              Re: I'm about to give up.please help!!!!

              My guess would be PCM , balancer or flywheel from what I have read. balancer you can feel behind it to see if any chunks of rubber have came off or are coming off, PCM you can buy for $50 to see if it is that and the flywheel i would do last since your taking apart the tranny from the engine. Just my guesses though.
              08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
              96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine

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              • #22
                Re: I'm about to give up.please help!!!!

                the pcm was reflashed but ill check the balancer and see whats up.

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                • #23
                  Re: I'm about to give up.please help!!!!

                  check your motor mounts and trans mount, bad mounts can cause alot of vibration, especially bad trans mounts

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                  • #24
                    Re: I'm about to give up.please help!!!!

                    Originally posted by adrummer02L78 View Post
                    check your motor mounts and trans mount, bad mounts can cause alot of vibration, especially bad trans mounts
                    thats the thing it's not the tranny mount cause it does it in neutral,and the tranny mount is ploy. as for the motor mounts they seem fine,i gased the motor from the engienand it doesn't move more than a quarter or so.

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                    • #25
                      Re: I'm about to give up.please help!!!!

                      how does the car drive? does it still have good power? smell the exhuast to see if shes got un burned fuel. it has to be sumthing that could get f'ed up i bet the ballencer is shot. because if ne thing else like the pressure plate or clutch was ****ed it would go south very quickly

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                      • #26
                        Re: I'm about to give up.please help!!!!

                        Originally posted by bwkmaro View Post
                        how does the car drive? does it still have good power? smell the exhuast to see if shes got un burned fuel. it has to be sumthing that could get f'ed up i bet the ballencer is shot. because if ne thing else like the pressure plate or clutch was ****ed it would go south very quickly
                        you know what,idk if it's in my head but it doesn't have the same kick and kinda hesitates and i think i may be burning a bit of fuel

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                        • #27
                          Re: I'm about to give up.please help!!!!

                          well the off balence will kick the knock sensors which will retard the timing killing power. because it thinks its pre detonating. accually have you gotten new gas since it started? im just throwing stuff out here now.

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                          • #28
                            Re: I'm about to give up.please help!!!!

                            Originally posted by bwkmaro View Post
                            well the off balence will kick the knock sensors which will retard the timing killing power. because it thinks its pre detonating. accually have you gotten new gas since it started? im just throwing stuff out here now.
                            yep new gas,still does it,but weirdly in the morning when the car is'nt hott it is much less,i don't know if it's when the engine gets warm or when the tranny(clutch or flywheel).

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                            • #29
                              Re: I'm about to give up.please help!!!!

                              i checked the balancer and it it's in good shape,i tried to shake it at the rims to see if it was dry rotted,,no chance.

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                              • #30
                                Re: I'm about to give up.please help!!!!

                                just let it sit and warm up with the clutch in then and see what it is have you done a clutch or pressure plate at all?

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