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View Poll Results: Harmonic balancer failure poll
I have not experienced a problem
547
64.13%
I think I have a problem now
73
8.56%
I have replaced it once
138
16.18%
I have replaced it twice or more
24
2.81%
I have replaced it, but decided not to use a GM part and went for an aftermarket unit
71
8.32%
Voters: 853. You may not vote on this poll

Harmonic balancer failure poll

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Old 02-09-2013, 04:37 PM
  #1  
Chip A
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Default Harmonic balancer failure poll
Seems like I see a lot of folks posting threads about the possible / failure of the harmonic balancer on their cars. I was curious in seeing just how pervasive the problem is. If you respond please indicate the mileage on your vehicle when / or each time you experienced the problem.
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Old 02-09-2013, 04:47 PM
  #2  
boraxman
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No problem on the 2008 LS3 at 11k miles
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Old 02-09-2013, 05:04 PM
  #3  
TerryL
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St. Jude Donor '17
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06 with 58,000+ and no problems yet.
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Old 02-09-2013, 05:23 PM
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Rogers 07
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07 105,000 miles, No problems yet !!!
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Old 02-09-2013, 05:25 PM
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MikeBravo56
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St. Jude Donor '12-'13-'14

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07 replaced at 28837.
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Old 02-09-2013, 05:58 PM
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ricknyc23
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07 replaced at 45000 miles
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Old 02-09-2013, 05:59 PM
  #7  
Racer
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St. Jude Donor '11

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Had/have 4 C6's, no problems on any of them.
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Old 02-09-2013, 06:00 PM
  #8  
Walt White Coupe
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05 replaced at 19,000 miles and three years of operation.
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Old 02-09-2013, 06:06 PM
  #9  
MelAnn
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'08 Roadster, LS3, 51,000 miles, no problem yet.
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Old 02-09-2013, 06:10 PM
  #10  
george vee
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No issues with my 08 LS3 vert 32k miles
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Old 02-09-2013, 06:11 PM
  #11  
Ketchum
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2008. 34,000 no issue.
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Old 02-09-2013, 06:21 PM
  #12  
Chip A
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When these things fail, what exactly is it that has failed?
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Old 02-09-2013, 07:26 PM
  #13  
RobLo
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'05, 22.5K miles, slight wobble and faint chirp, replacement planned in the very near future.....
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Old 02-09-2013, 07:36 PM
  #14  
MTsVette
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'06 LS2 with 66,700 mi...a slight wobble. GM Corvette mech said it's ok right now...

MT
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Old 02-09-2013, 07:39 PM
  #15  
dpigguy
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'08, 42k and no problems
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Old 02-09-2013, 07:52 PM
  #16  
Patrick57
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new engine replaced at dealership, replaced twice. Car has 12,000 since last replacement. Seems ok.
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Old 02-09-2013, 07:58 PM
  #17  
Buck-I
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2007 20xxx miles

probably broke even on the gmpp
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To Harmonic balancer failure poll

Old 02-09-2013, 08:03 PM
  #18  
Sneed
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2011 with less than 3,000 miles. I have not experienced any problems....yet.
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Old 02-09-2013, 08:07 PM
  #19  
switchblade six
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Can someone explain the problem...is it a visual inspection
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Old 02-09-2013, 08:08 PM
  #20  
MikeERWNC
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I am pretty sure I have the issue.
I replaced all the idler pulley's and still have the chirpping.
My HB has a pretty healthy wable.
65K miles... I am OK replacing it to have piece of mind.
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