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Old Jun 9, 2011 | 12:14 AM
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it's never consistent.
you can't really hear it with the hood open. (can hear it really well from the sides/bottom)
RPMs/oil pressure sags a bit when it happens.
happens frequently.
from what i can tell it does increase a bit with RPM thought it ceases to cause problems when i start moving.


anyone have any idea what i need to replace/fix/adjust?
any help is appreciated

oh, and it's NOT throwing any codes as of yet. this has been going on for a good while now.
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Old Jun 9, 2011 | 12:22 AM
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Does it go away when the engine is at operating temp?
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Old Jun 9, 2011 | 12:48 AM
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not at all. if i had to guess, i'd say it gets worse.

something with the plugs/packs/wires?

i had an O2 sensor wire fry on the header once before and is did something similar when it would short but, i didnt see any signs of that happening again.

EDIT: if possible, i'll get a video of it tomorrow, assuming i can pick up the sound. you can hear/feel it throughout the vehicle. if you're standing behind the car listening to the exhaust, it almost sounds like it misses a cylinder in the rotation.
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Old Jun 9, 2011 | 01:05 AM
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hi mileage?wornen trunnion bearings?
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Old Jun 9, 2011 | 01:10 AM
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36k miles
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Old Jun 9, 2011 | 01:08 PM
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here's a video of the sound. you can hear it and it's effect a bit better when you watch it in HD.

http://youtu.be/pfdNBTHtZQo

any help is appreciated!
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Old Jun 10, 2011 | 12:08 AM
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anyone? i can't imagine this is good for the car =/
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Old Jun 10, 2011 | 06:48 PM
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are you sure your downpipe isnt raddling against the heat shield? because right where you are pointing the camera, mine does.
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Old Jun 10, 2011 | 07:51 PM
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Sounds kind of like ignition wires arcing. I'm not saying that's what it is, just that's what it sounds like.
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Old Jun 10, 2011 | 09:48 PM
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Hmm, then again I can feel the rattle on the floor inside the car.
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Old Jun 11, 2011 | 03:47 PM
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yes, my pipes do rattle but that's definitely not where the sound comes from (despite being able to hear that as well in the video)

if it is the wires, what needs to be done? replace/reseat? how can i tell if a wire has gone bad? none look burned.
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Old Jun 11, 2011 | 04:25 PM
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if your running the stock flexplate it could be cracked/broken.
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Old Jun 11, 2011 | 06:58 PM
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jeez, i hope it isn't that!

i don't suppose there's a way to tell for certain without tearing off the tranny?

any way to check on the wires?
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Old Jun 12, 2011 | 11:17 AM
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you can pull the inspection plate off and try to peek through there.
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