02-22-2013, 03:57 AM | #1 |
Loving his first Camaro!!
Drives: 2013 2LT Camaro - Crystal Red RS Join Date: Jun 2012
Location: Southern California
Posts: 78
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Knocking Noise in the Rear - 2013 2LT Auto
Hey Guys...
This only happens once in a while, so I haven't discussed it with the dealer yet. Not being able to duplicate the noise on command will certainly make this an up hill battle, unless I get my ducks in a row. On colder days, when I'm puttering around town... At lower speeds on neighborhood streets, or in a parking lot... There is sometimes a knocking sound from the rear. It goes: Knock....... Knock...... Knock.Knock.Knock.Knock.Knock.Knock.Knock. It's always the 2-3 inital knocks, followed by a series of 6-10 quick repetitive knocks. Has anyone had this problem? Any suggestions? Thanks, Senator |
02-22-2013, 06:33 AM | #2 |
Drives: Camaro SS & ZL1 Join Date: Sep 2011
Location: Southeast USA
Posts: 527
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Sounds like the clutch packs by your description. Call the dealer and explain the issue. See what they say.
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02-22-2013, 07:39 AM | #3 |
376 cubic inches of fun
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Does this always happen within a few minutes of starting?
There is a brake self-calibration sequence that sound like what you are describing. It happens only once in a while. |
02-22-2013, 11:05 AM | #4 |
Loving his first Camaro!!
Drives: 2013 2LT Camaro - Crystal Red RS Join Date: Jun 2012
Location: Southern California
Posts: 78
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02-22-2013, 11:06 AM | #5 |
Loving his first Camaro!!
Drives: 2013 2LT Camaro - Crystal Red RS Join Date: Jun 2012
Location: Southern California
Posts: 78
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02-22-2013, 03:22 PM | #6 | |
Drives: GM Vehicles Join Date: Jun 2010
Location: Michigan
Posts: 9,328
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Quote:
I’m sorry you are experiencing this issue. I have researched my resources; however, there are currently no known “knocking” issues available at this time. I second the advice of “Hannibal”, have your dealer take a quick look. Please keep us posted. If you have additional questions or concerns, please feel free to contact me. Louis (assisting Brandon) Chevrolet Customer Service
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02-22-2013, 03:28 PM | #7 |
Drives: 2015 1SS 1LE MPP Join Date: Nov 2012
Location: Duluth, GA
Posts: 207
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If I remember correctly, someone here described it as the gas tank vacuum self check. You won't hear it with a full tank though, only at some point when you have less than a full tank.
I just call it the tapping of my kidnap victims in the trunk |
02-22-2013, 03:32 PM | #8 |
Drives: 2015 1SS 1LE MPP Join Date: Nov 2012
Location: Duluth, GA
Posts: 207
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Ah, the better technical answer....
It's the EVAP system doing diagnostics |
02-23-2013, 06:13 AM | #9 |
Drives: 2011 Black SS M6 Join Date: Oct 2010
Location: Harpers Ferry, WV
Posts: 1,116
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These cars do not have a baffle in the fuel tank. At low speeds when you have half tank or less, the gas will smash around in the tank and create a very pronounced knocking sound inside the car. It certainly has a liquid sound if you listen beyond the initial "knock" sound. The best way to eliminate the far worse clutch pack issue suggested, is to stop the car (with half tank or less) and see if you hear the knocking sound immediately. If you do, it's extremely likely to be just the fuel slamming the tank, which is normal.
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02-23-2013, 09:42 AM | #10 |
while my lemon was in the shop a bunch i had the ...well not an honor but the chance to drive most of the chevy fleet and I can tell you they all do it.
So +1 for it not apparently bieng an issue. |
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02-26-2013, 11:03 PM | #11 |
Drives: '15 SS Join Date: Sep 2012
Location: North County
Posts: 1,235
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I hear this noise also.
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11-20-2013, 11:40 PM | #12 |
Drives: 2013 Camaro 1SS & 2015 Camaro SS Join Date: Oct 2013
Location: Fremont, CA
Posts: 223
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same here on my 13 LS3 M6 with 3k miles. just noticed it today
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11-21-2013, 05:40 PM | #13 | |
Drives: GM Vehicles Join Date: Jun 2010
Location: Michigan
Posts: 9,328
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Quote:
Sincere apologies to hear about the knocking noise on your 2LT. Any frustration this causes is certainly understandable and I understand you're seeking community opinions and responses here. If needed, feel free to message us privately and we'll exhaust our options to help resolve your concerns. William R. Chevrolet Customer Care |
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11-21-2013, 09:10 PM | #14 | |
Drives: 2013 Camaro 1SS & 2015 Camaro SS Join Date: Oct 2013
Location: Fremont, CA
Posts: 223
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Quote:
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