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Old 08-17-2013, 05:16 PM   #18
slim-n-none
 
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Originally Posted by Jeff_SS View Post
Are we talking about a sliiight rattle that happens at very low speed like when you're backing out of a parking spot, or just starting to take off slowly?
Because I've heard that every once in a while..
I think your describing it. Mine was from idle to +\-1k rpms.
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Old 09-04-2013, 01:28 AM   #19
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you got it drove me nuts with the windows down.

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Originally Posted by Jeff_SS View Post
Are we talking about a sliiight rattle that happens at very low speed like when you're backing out of a parking spot, or just starting to take off slowly?
Because I've heard that every once in a while..
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Old 09-04-2013, 01:38 AM   #20
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this may help some guys that are not sure where this is at.



this is a bbk video they have about installing there long tubes but at about 55 secs into the video you can see the clamps that are the problem they show them taking them off a few seconds later. they have lots of shots of them in the video. the problem is the under the metal flange on them. under that is a guide pin or disk that should be welded onto the stock pipe that has fallen off. that is the rattle. take it out life is good.
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Old 09-04-2013, 01:42 AM   #21
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This is the guide pin out of mine very small disk.
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Old 09-04-2013, 02:11 AM   #22
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Originally Posted by slim-n-none View Post
Mine was from idle to +\-1k rpms.
Please tell me how you geet your engine to spin at -500 RPMs. Do you save a lot of gas spinning it backwards?
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Old 09-04-2013, 09:15 AM   #23
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Squillo, Did you even make it to high school? +/- means about, soooooooo +/-1k would be about 1000 rpms (rpms=revolutions per minute)....... Anything else I need to clarify for you?
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Old 09-04-2013, 11:08 AM   #24
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It's awesome that I took my car to the dealership for this rattle and they told me it was my actuators on the npp opening up. I laughed and told them to give me my keys because my fuse is pulled and that is impossible. The tech said you can always take it up with gm customer service or go to another dealership. Thanks for the post. Saved me a headache of fighting with dealers.
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Old 09-04-2013, 01:29 PM   #25
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yea i did not want to take mine to the dealer and deal with a tech myself for the same reason.

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It's awesome that I took my car to the dealership for this rattle and they told me it was my actuators on the npp opening up. I laughed and told them to give me my keys because my fuse is pulled and that is impossible. The tech said you can always take it up with gm customer service or go to another dealership. Thanks for the post. Saved me a headache of fighting with dealers.
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Old 07-17-2015, 09:43 PM   #26
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How big is that disc, size of a dime, penny, etc? Thanks!
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Old 07-18-2015, 09:54 AM   #27
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How big is that disc, size of a dime, penny, etc? Thanks!
If i remember right, it was about the size of a dime and about as thick as three of them stacked on top of each other. I slept a few times since i fixed it....
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Old 07-18-2015, 10:51 AM   #28
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Originally Posted by slim-n-none View Post
Squillo, Did you even make it to high school? +/- means about, soooooooo +/-1k would be about 1000 rpms (rpms=revolutions per minute)....... Anything else I need to clarify for you?
Nope! means "about" or "approximately equal to".

+/-1k means plus 1k or minus 1k.
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Old 07-18-2015, 11:34 AM   #29
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Nope! means "about" or "approximately equal to".

+/-1k means plus 1k or minus 1k.
In my line of work +/- means about, and just about every other job I've ever had it was the same. So even in your definirion it would cover me to 0 rpms to 2k... Where did the -500 come from?
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Old 07-18-2015, 02:29 PM   #30
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If i remember right, it was about the size of a dime and about as thick as three of them stacked on top of each other. I slept a few times since i fixed it....
Thanks found it. The disc seems very tight when I am looking at it under the car and engine off. No rattling when tapping. Any suggestions here?
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Old 07-18-2015, 09:42 PM   #31
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In my line of work +/- means about, and just about every other job I've ever had it was the same. So even in your definirion it would cover me to 0 rpms to 2k... Where did the -500 come from?
I don't know. I never mentioned -500.
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Old 07-21-2015, 10:28 PM   #32
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I still dont get where this disc is. I've installed high flow cats and have taken that coupler off. Bent the tabs back and still never seen that disc.

I too have the low rpm rattle.
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Old 08-22-2015, 03:33 PM   #33
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I recently bought a used 2013 2ss 1le with the npp exhaust and it had a metallic rattle that sounded like a loose heat shield. I really did not want to take into the dealer.

Found this thread on google and jacked up the car this morning, sure enough the small disk pictured in the thread was the culprit. The one on the passenger side had broken loose and was rattling around under the clip/ tang shown in the first post, the one on the driver side was still solidly welded. The spot weld on the passenger side puck probably broke loose during assembly at the factory.

Thanks for posting this thread, saved me a trip to the dealer.
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