Dumb question..if this is such an issue why hasn't a class action suit been brought against GM?
It reminds me of my 00 silverado. The speedo would get stuck in the weirdest spots. I then did some research and found this was happening to a lot of people. I called my local dealer who had NO idea of what I was speaking about but could fix the problem for about $500.
I did more research only to find i could get the parts I needed for $10 and do it myself, which i did.
About 6 months after that, i get a notice from gm about a class action law suit and if i paid to have this fixed I'd get my money back.

mace

 

Reread your first sentence. Did you mean to ask . . "why hasn't?"

 

yep..thanks

 

There's your answer. It isn't.

 

I want to know how you fixed your issue for $10 bucks?

 

Such an issue is a relative term.



First, you are on an enthusiasts' site. The concentration of model vs. issue is far higher than the problem probably is in the larger community of owners.



What could look like a 50% problem on CF, might only be a 5% problem for all Corvette owners.



Next, even if it is a big issue, GM assesses business issues like parts failures on a risk vs cost basis. If the cost to repair all vehicles in a MY exceeds the cost of some warranty replacements and other costs, then they're not going to do anything.



The risk component, even though it sounds cruel, includes the estimate of how many lawsuits might arise and what the cost of defending against those suits will cost. Here's the really hard pill to swallow - it also includes suits from injuries and deaths that might occur.....Yes, it might be cheaper to fight lawsuits that result from injuries and deaths than is does paying for an entire recall.



This is reality and happens with ALL manufacturers. Look into the GM ignition failure, Ford's SUV rollover problem, various parts failures of ALL mfgrs where fires occurred in the garage and burned houses down.



All of these, at least at first, were less expensive to fight in court than fix the problem. HB failures in LS engines is so tiny, it doesn't even make the radar screen.

 

It took me a while but I think he means the speedo on his truck.

 

this

 

I put 92,000 miles on my C6s from Sep. 2004 through Apr. 2017 and never had a problem with the harmonic balancer on any of them.

 

Unfortunately my 07 with 22K on it is in the shop right now for a new balancer. It was squealing and had a slight wobble that started to chew up the new belts that I put on last year. Better safe than sorry.

 

I understand this is an enthusiast site, but even 5% would be a huge number of C6s.
Is there a common denominator...years..days built.. hb manufacturer?
Looking at it logically they all should be bad is sourced from the same manufacturer.

 

I'm sure this has been asked before, but how will I know when it needs replacement? IE Noise, smoothness? 05' with 63K

 

 

My 2006 didn't have a problem with 65000 miles. My 2011 GS has the HB problem at 25000 miles.

 

If it is 5% it would be about 11,000 cars. I suspect that is way high. Just me.

 

that is a good point, rux. I think, on the forum, it is likely lower than 10%. Off the forum, maybe 5 people in 100 even know what to look for. Probably a 2-3% repair rate, over the lifetime of the C6 run.

Considering that the dealer will ALWAYS tell you it is bad, and they make a good chunk of change on the fix, it is a built-in profit center. From their POV, why mess with it?

 

My 2007 started throwing off the A/C belt, I kept having it replaced only for it to come off in a few hundred miles. Then I learned about the Harmonic Balancer issue. $1100 later and a new HB from the dealership and now my A/C belt stays on. On the Facebook C6 group I see a lot of people reporting the HB wobble. I also think there should be a class action. I want my $1100 back! :-)

 

Old thread resurrection but I will respond in a non-helpful manner.

Prepare to be bombarded with this....."If you REALLY read up on the HB wobble issue, then why did you go back with a GM supplied new one?"

 

Since it is a revived thread now from 2018, how is the class action going?

 

Very old thread I know...But what year(s) of C6s seem to have the problem with harmonic balancers?