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06-13-2013, 03:54 AM
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#1 |
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RATTLING/GRINDING NOISE COMING FROM ENGINE
I JUST INSTALLED MY ROTO-FAB CAI AND WHEN I STARTED HER UP, I NOTICED A RATTLING/GRINDING NOISE COMING FROM THE MOTOR. I NEVER HEARD THIS NOISE WHEN THE OEM AIR INTAKE WAS ON. MY CAR ONLY HAS AROUND 300 MILES ON IT. I SAW A POST ON HERE BY VROOM ABOUT HIS SC GOING BAD AND IT SOUNDS LIKE HIS DID, JUST NOT AS BAD YET. IT SOUNDS LIKE IT IS COMING FROM THE SNOUT, PROBABLY THE ISOLATOR GOING BAD. HAS ANYONE ELSE EXPERIENCED THIS? AM I HEARING THINGS OR CAN YOU GUYS HEAR IT TOO? SORRY FOR THE POOR VIDEO
http://youtu.be/8tT-kxMJzgM |
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06-13-2013, 04:00 AM
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#2 |
   
Drives: 2015 SS Sedan M6 Join Date: Dec 2009
Location: Dallas, TX
Posts: 1,086
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Isolator coupling. It's normal according to GM...
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06-13-2013, 04:02 AM
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#3 |
      
Drives: 20 X3M CP & 19 ZL1 1LE A10 Join Date: Jun 2013
Location: Brenham, TX
Posts: 3,517
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You are killing me with the all caps!
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06-13-2013, 04:53 AM
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#4 |
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I Carry!
Drives: 2013 CRT ZL1 Join Date: Jul 2011
Location: Fletcher, Ok
Posts: 2,722
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it's still under warranty, take it to the dealer, better safe than sorry.
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http://www.camaro5.com/forums/showthread.php?t=261540 From Oklahoma, Join us on Facebook https://www.facebook.com/groups/okcamaros/  |
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06-13-2013, 05:20 AM
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#5 |
 
Drives: 2013 Camaro ZL1 #2419 Join Date: Jan 2013
Location: Weatherford, Tx
Posts: 289
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What he said!!! ^
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06-13-2013, 02:31 PM
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#6 |
 Drives: 2013 Camaro ZL1 Join Date: Oct 2012
Location: SF Bay Area
Posts: 325
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That's how mine went too. It started right after I changed the air filter. get the sound on video, which I know is pain since its sporadic, and take it in. they'll have it replaced in a couple days.
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06-13-2013, 03:09 PM
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#7 | |
  Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011
Location: Trenton, Michigan
Posts: 7,046
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Quote:
If the noise is 'excessive' they will replace the entire SC assembly and not just the isolator because the entire unit is considered a replacable unit. Who determines if the noise falls within normal limits or is considered excessive? Good question |
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06-13-2013, 03:27 PM
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#8 |
Drives: C6 Z06 Join Date: Jan 2010
Location: Dayton, MD
Posts: 1,645
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RIP to your supercharger
gone but not forgotten Everyone go pull your S/C and clean the oil out, then install a catch can! The oil build up will mess with the bearings/rotors and eventually cause your s/c assembly to make nasty noises and maybe fail! |
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06-13-2013, 04:32 PM
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#9 |
 Drives: 2012 ZL1 Join Date: Jan 2013
Location: NJ
Posts: 102
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I listened to vrooms video and in my opinion your motor sounds nothing like his. His you could hear the hard grind, I don't hear that in your video. what I hear in your video is exhaust and upper motor warm up?
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06-13-2013, 05:23 PM
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#10 |
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Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,936
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I listened to the video, and my previous 2012 sounded exactly the same. It sounds like the coupler noise (marbles rattling in a can), not the squeeling of a bearing or some other part failure within the supercharger as heard in another video. I hated the noise and heard it since the car was new, but it didn't get any louder with my RotoFab. I didn't worry too much about it, since I planned on changing the upper pulley and going to a solid coupler.
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06-13-2013, 06:44 PM
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#11 |
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Drives: 2013 Camaro ZL1 Join Date: Oct 2012
Location: SF Bay Area
Posts: 325
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his sounds about right. it's very hard to capture. in his video you can hear the slight squealing at the start of the video. most the time mine would sound just like that at startup and it was so subtle I couldn't ever catch it before it disappeared behind the isolator noise. took a week to capture the noise in the video.
the noise sounds horrible, and it will get worse, but I don't think it's going to hurt anything. I also had a slight surging as the car would settle to a constant speed after accelerating that only I noticed.
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06-13-2013, 08:13 PM
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#12 |
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Thanks guys for all of your input and opinions. I made an appointment with my dealer just so they could check it out and give me some piece of mind. Just want to play it safe. I'll let u know what the outcome is.
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06-13-2013, 08:32 PM
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#13 |
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Drives: Camaro's, always have, always will. Join Date: Oct 2010
Location: Home of the brave
Posts: 4,851
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...there are several threads on this noise issue that has been an ongoing concern...Eaton,... the manufacturer, decided to place a spring in the coupler for God knows why, which is less than a precise coupling and causes wear over time causing a harmonic noise. It's normal actually, by all accounts. I am not a fan of this poor design.
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In Scott We Trust...all others must show proof.
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06-13-2013, 08:36 PM
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#14 |
Drives: 13 ZL1 SIM, 99 Z28 Black Join Date: Feb 2013
Location: Spokane, WA
Posts: 708
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When you go in for this problem do you leave the CAI installed so they can hear it better?
__________________
2018 C7 Z06 - WGG, M7. / 2013 ZL1 - SIM, 6 spd, RotoFab CAI, Can. / 1999 Z28 - Black, 6 spd, K&N, Subframe. / More Fun Stuff - www.inlandspeed.com
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| 2013camarozl1, camarozl1, musclecars |
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