Nasty Rattle at 1500rpms? (video)
10-27-2006, 12:22 AM
#21
TECH Senior Member
While your messing with your exhaust check out the metal covers around your 02 sensors, one of mine was not printed and rattled at idle and during hard acceleration (but i was not as loud, or as deep sounding as yours).
10-27-2006, 12:32 AM
#22
Staging Lane
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I think I have located the noise. It is coming from directly under the drivers seat. Maybe from that connector or that bulge in the pipe, after the cat before the flat pipe.
10-29-2006, 12:59 PM
#23
Launching!
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Had the same exact problem except mine was alot louder and more constant.
The guts in my cats came aloose and whenever you rev it sounds like a little marble or whatever jumping around inside. I'm not really sure what happened, if it came out, got lodged, or eventually just burned up.
Other than that, make sure you check your headshields, bolts, hangers, and the welds on the 02's (any of that can come aloose if you hit like a pothole or something and don't even know it).
The guts in my cats came aloose and whenever you rev it sounds like a little marble or whatever jumping around inside. I'm not really sure what happened, if it came out, got lodged, or eventually just burned up.
Other than that, make sure you check your headshields, bolts, hangers, and the welds on the 02's (any of that can come aloose if you hit like a pothole or something and don't even know it).
10-29-2006, 07:27 PM
#24
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The hangers factory are for **** on f-bodies. Check the cats heat shield position or better yet dump that cat, and go back with same O.D. pipe 
makes for a hella rump-ing. Don't hollow um out or you will have a compression gap, while not serious it will make for even more rattle and less rump. We want more rump and less rattle Yea it will blow a SES code after a few good runs, but you can clear it by undoing the neg batt cable for 10 mins or clearing it with a scanner. Perm. solution is to have it programmed out.
makes for a hella rump-ing. Don't hollow um out or you will have a compression gap, while not serious it will make for even more rattle and less rump. We want more rump and less rattle Yea it will blow a SES code after a few good runs, but you can clear it by undoing the neg batt cable for 10 mins or clearing it with a scanner. Perm. solution is to have it programmed out. 
