View Poll Results: Harmonic balancer failure poll

I have not experienced a problem

547

64.13%

I think I have a problem now

8.56%

I have replaced it once

138

16.18%

I have replaced it twice or more

2.81%

I have replaced it, but decided not to use a GM part and went for an aftermarket unit

8.32%

Voters: 853. You may not vote on this poll

Harmonic balancer failure poll

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12-07-2018, 10:08 AM

#261

windyC6

Safety Car

Member Since: Jan 2011

Posts: 4,951

Likes: 1

Received 514 Likes on 425 Posts

This may have already been mentioned....but I think one of the options to answer should have been...."Has been wobbling for 10 years and hasn't gotten any worse"......

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Bruze (12-07-2018)

12-07-2018, 10:42 AM

#262

gtmalone

Racer

Member Since: Jun 2018

Location: Allen, TX

Posts: 322

Likes: 18

Received 37 Likes on 16 Posts

'07 A6, stock engine. Original owner replaced it about 11K. I had it replaced again a little over 14K (second day of ownership) plus the crank bolt was loose.

Last edited by gtmalone; 12-07-2018 at 10:43 AM.

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12-07-2018, 11:59 AM

#263

BackInBlack05

Pro

Member Since: Jul 2012

Location: San Jose CA

Posts: 625

Likes: 1

Received 57 Likes on 53 Posts

Quote:

Originally Posted by tsmart

10 base. 19000 miles. Replaced. Numbers illustrate 22% failure, that is huge.

These kind of polls are statistically useless. They attract those who have had issues vs. those who haven't. Few jump on the internet to give raves vs. complain.

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12-07-2018, 12:40 PM

#264

PilotmyC6

7th Gear

Member Since: Dec 2018

Location: NJ

Posts: 7

Likes: 1

Received 0 Likes on 0 Posts

My understanding is the HB wobble and loose bolt issue affects 2005 C6’s below serial numbers 11044 .

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12-07-2018, 03:10 PM

#265

EVRose

Race Director

Member Since: Oct 2010

Location: Las Vegas NV

Posts: 14,475

Likes: 55

Received 772 Likes on 612 Posts

Quote:

Originally Posted by PilotmyC6

My understanding is the HB wobble and loose bolt issue affects 2005 C6’s below serial numbers 11044 .

Only the loose bolt issue. Not the wobble. That can happen on any year.

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carls2004 (05-12-2020)

12-07-2018, 03:24 PM

#266

Tom_Slick

Le Mans Master

Member Since: Apr 2006

Location: Chicago IL

Posts: 7,105

Likes: 27

Received 58 Likes on 32 Posts

'06 A6 replaced at 45K miles...

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12-07-2018, 04:41 PM

#267

TucoTom

Racer

Member Since: Oct 2018

Location: Idaho

Posts: 261

Likes: 19

Received 50 Likes on 40 Posts

2007 Convertible w/ 25,200 miles. Harmonic Balancer still okay.
The good thing about the threads concerning the balancer issue is that they made me aware of the problem.

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12-07-2018, 04:53 PM

#268

Welker1

Melting Slicks

Member Since: Jul 2015

Location: Mesquite NV

Posts: 2,800

Likes: 664

Received 555 Likes on 464 Posts

A little over 12 years and almost 100K miles, have not had an issue (yet) .. knock on wood

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12-08-2018, 10:06 AM

#269

JoeMatilda

Instructor

Member Since: Nov 2017

Location: Dallas, Texas

Posts: 198

Likes: 203

Received 51 Likes on 33 Posts

07 M6 - Original owner replaced it at anout 17k. No additional issues.

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12-08-2018, 11:16 AM

#270

ErikR

Drifting

Member Since: Sep 2016

Location: middle of nowhere WI

Posts: 1,949

Likes: 88

Received 130 Likes on 81 Posts

A few years ago, I bought a used 07 with 36,000 miles on it. I replaced the balancer a couple of months later.

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12-10-2018, 12:58 AM

#271

owc6

Team Owner

Member Since: Apr 2013

Posts: 24,550

Likes: 3,771

Received 4,186 Likes on 2,679 Posts

I'm afraid to answer. Knock wood, but:

350,000 miles on C6s with no HB issues.

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12-10-2018, 09:24 AM

#272

Mike Green9

Drifting

Member Since: Sep 2007

Location: 1000 Islands Ontario

Posts: 1,293

Likes: 1,019

Received 134 Likes on 110 Posts

Did you say 350,000 miles? Any major power train work?

Totally awesome.

M...

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12-10-2018, 09:46 AM

#273

owc6

Team Owner

Member Since: Apr 2013

Posts: 24,550

Likes: 3,771

Received 4,186 Likes on 2,679 Posts

Quote:

Originally Posted by Mike Green9

Did you say 350,000 miles? Any major power train work?

Totally awesome.

M...

The total miles for each of the three cars is in my sig. The '05 has an LS3 in it (replaced at 170,000 mi.) and a new tranny done only a few miles ago. The Z06 was perfect, and the '08 has only a few gaskets replaced due to the previous owners lack of driving.

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12-10-2018, 04:22 PM

#274

Jack Forbes

Racer

Member Since: Feb 2014

Location: Morgantown West virginia

Posts: 251

Likes: 2

Received 1 Like on 1 Post

Balancer

Replaced at 30.000 did not use oem

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12-10-2018, 06:39 PM

#275

HammerheadTed

Instructor

Member Since: May 2016

Location: Crystal River Florida

Posts: 245

Likes: 170

Received 41 Likes on 32 Posts

‘05 A4 replaced at 175K, now with 215K and no other drivetrain issues.

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12-11-2018, 12:35 PM

#276

Legalice

Advanced

Member Since: Dec 2017

Posts: 68

Likes: 28

Received 8 Likes on 7 Posts

2005 manual. Purchased in February '18 with 39900 and had to replace it a short time later. Not sure how I missed in my inspection...but replacement failed less than 1k miles later so it was replaced again. The last 3-4k miles have gone without issue.