Odd Rattling During Revving???
Odd Rattling During Revving??? Whenever I rev the motor, when the RPMs are dropping, I can hear this rattling under the car. The sound resembles small rocks, maybe 1/8" in diameter shaking around in a metal bucket. I can't really tell if its coming towards the front or the back. I'm thinking it has something to do with the exhaust maybe the tranny, I'm not sure. Anyone know what the problem could be, or what I could check? Thanks!
Originally Posted by Ferocity02
Whenever I rev the motor, when the RPMs are dropping, I can hear this rattling under the car. The sound resembles small rocks, maybe 1/8" in diameter shaking around in a metal bucket. I can't really tell if its coming towards the front or the back. I'm thinking it has something to do with the exhaust maybe the tranny, I'm not sure. Anyone know what the problem could be, or what I could check? Thanks!
yup thats exactly waht it is, its the y banging on that piece of stamped steel.. i got the BMR TUNNEL BRACE wich replaces that stamped metal piece of garbage, and walla the rattling was gone... u can pick the bmr brace up at thunderracing.com for like 89.99
Originally Posted by ModGod
Yeah...I know just what you mean!!!?!?! I have had the same problem ever since I bought my 2000 WS.6 about a year ago. Mine even does it at idle sometimes. Got under the car and can't find the source. Does it sort of sound like a heat shield tapping or something? Do u have any exhaust mods? If you figure it out, let us/me know. It's really annoying and I'm sick of listening to it already.
Seems like it might be the y-pipe hitting the stamped steel tunnel brace, that is where the noise is coming from I think. Since the tunnel brace is useless I will probably take it off, or just make my own. I will let you know what happens. I'll probably mess with is tomarrow.
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Originally Posted by SouthFL.02.SS
If it sounds like rocks in a bucket, your catalytic converter has broken apart inside. Happened to me. Now I have hi, hi flow cats. 
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I removed the tunnel brace and got the same sound. There was at least an inch between the tunnel brace and the y-pipe or the torque arm. I figured out that it was the cutout, it isn't closing all the way and not making a good seal so its leaking and putting out a metalic sputtering sound.
High RPM unloaded... just the ticket for
an engine with slight oil control problems.
GM even implicates it in the "non-problem"
of high oil consumption. The super-wazoo
technicoated pistons and not overboring
#1 took care of all that, somewhere around
2001. Or not.
an engine with slight oil control problems.
GM even implicates it in the "non-problem"
of high oil consumption. The super-wazoo
technicoated pistons and not overboring
#1 took care of all that, somewhere around
2001. Or not.
