broken?tranny?support?

1281 Views 32 Replies 14 Participants Last post by Boosted2.0, Nov 22, 2006

elcelicagts

Discussion Starter · Oct 21, 2006 (Edited)

video engine rattle, not liftbolt?

ok i edited this, thread. the noise got to loud so i can actually record it now. and its not from below its comming from the charger,engine,or starter. still not sure what it is. it sounds diffrent than a broken lift bolt. heres the video.

you only hear it start at 3.7k rpm and less around 4.5 k rpm. my friend in the car was revving it up and down as you can see. any ideas. unfortunatly i dont want to move the car now, since it sounds really bad.

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LightningRod

· #7 · Oct 22, 2006

Yeah it definitely sounds like the belt is hitting something.

As for why it only occurs in that RPM range, I think it's because different objects have different resonance frequencies ... in this case, your engine running between 3700 and 4500 RPM creates that ideal frequency that causes whatever it is to vibrate, coming in contact with the belt and making that awful sound.

I'm probably wrong though.

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