Another Harmonic Balancer Thread
Thread Starter
7th Gear
Joined: Jan 2016
Posts: 7
Likes: 0
From: Kansas
Another Harmonic Balancer Thread
Greetings. Just got my '07 C6 w/30k mi. back from the dealership, after a HB replacement, belts, allignment and everything else. It was chirping last week, and through a search on this forum, I was able to determine quickly what it was. Thanks forum! Anyway, It was a $1265 job. I bought the car nearly 5 months ago, and they had no obligation to me for this repair. They covered $1000 and I paid the $265. They admitted that this was a common problem. Sounds like I got a good dealer. My question is: Has there been any updates over the past years to keep this from happening again? (i.e. updated or redesigned part) Or did they most likely, replace it with identical parts? Why the four-wheel allignment?
thanks..
sean
thanks..
sean
Le Mans Master
Joined: Oct 2014
Posts: 8,671
Likes: 2,725
From: Atlanta GA
Greetings. Just got my '07 C6 w/30k mi. back from the dealership, after a HB replacement, belts, allignment and everything else. It was chirping last week, and through a search on this forum, I was able to determine quickly what it was. Thanks forum! Anyway, It was a $1265 job. I bought the car nearly 5 months ago, and they had no obligation to me for this repair. They covered $1000 and I paid the $265. They admitted that this was a common problem. Sounds like I got a good dealer. My question is: Has there been any updates over the past years to keep this from happening again? (i.e. updated or redesigned part) Or did they most likely, replace it with identical parts? Why the four-wheel allignment?
thanks..
sean
thanks..
sean
if it goes again in the next 4 years they will be getting it right back as I have the extended warranty
Dave
Safety Car
Joined: Dec 2006
Posts: 4,576
Likes: 1,655
From: Pearland / Houston Tx
A GM dealer likely replaced it with a GM part so another failure is more likely than if a higher quality aftermarket part was installed.
A balancer swap requires moving the rack and pinion and/or dropping the engine cradle. Either task can, but not necessarily, disturb the alignment settings. I think most don't get an alignment afterwards but is good if you can get it.
A balancer swap requires moving the rack and pinion and/or dropping the engine cradle. Either task can, but not necessarily, disturb the alignment settings. I think most don't get an alignment afterwards but is good if you can get it.
Le Mans Master
Joined: Oct 2014
Posts: 8,671
Likes: 2,725
From: Atlanta GA
A GM dealer likely replaced it with a GM part so another failure is more likely than if a higher quality aftermarket part was installed.
A balancer swap requires moving the rack and pinion and/or dropping the engine cradle. Either task can, but not necessarily, disturb the alignment settings. I think most don't get an alignment afterwards but is good if you can get it.
A balancer swap requires moving the rack and pinion and/or dropping the engine cradle. Either task can, but not necessarily, disturb the alignment settings. I think most don't get an alignment afterwards but is good if you can get it.
Agreed but as long as they are paying for it ...
When they did mine they did align it which I did not think about it until I read the service paperwork that listed the work that was done
Dave
Le Mans Master
Joined: Feb 2014
Posts: 5,463
Likes: 1,138
From: Chino CA
There is a new part number but the GM balancer they just installed is the same design as the one that was going bad on your car. For $265.00, I would have let them install the same GM balancer again as well. I had to pay for mine so I installed an ATI. My 2007 needed it at 25,000 miles.
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Drifting
Joined: Mar 2013
Posts: 1,705
Likes: 538
From: Hampton VA
as I posted earlier my HB went at 106K the dealer replaced it with a GM part but they guaranteed it parts and labor for life and aftermarket part would only have a year guarantee and not labor so I am not worried
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
As I have stated many times this is just becoming more and more prominent. Even on this small forum which makes me wonder the percentage of HB failures thru out the nation of all Corvette's.
This is a big deal IMHO and GM should address it, but yet I realize they will never do it, sad
NSF
This is a big deal IMHO and GM should address it, but yet I realize they will never do it, sad
NSF
Le Mans Master
Joined: Oct 2014
Posts: 8,671
Likes: 2,725
From: Atlanta GA
Some people never had a problem others have put 2 or 3 on ....just a Crappy design
I have had plenty of old muscle cars LS 6 chevelle, 396 Camino, a few z/28's and never replaced a harmonic balancer .
Dave
Last edited by Dcasole; May 9, 2016 at 09:27 PM.
Drifting
Joined: Mar 2013
Posts: 1,705
Likes: 538
From: Hampton VA
As I have stated many times this is just becoming more and more prominent. Even on this small forum which makes me wonder the percentage of HB failures thru out the nation of all Corvette's.
This is a big deal IMHO and GM should address it, but yet I realize they will never do it, sad
NSF
This is a big deal IMHO and GM should address it, but yet I realize they will never do it, sad
NSF
Thread Starter
7th Gear
Joined: Jan 2016
Posts: 7
Likes: 0
From: Kansas
Thanks for the replies. My dealer did treat me right. I'd had the car for 5 months, but only put a few hundred miles on it. They probably took that into consideration. This is my first GM / Vette in 15 years. (Had a super low-mile clean C4 in '01) I'v always had a German car for a weekend toy since. The HB is a minor inconvenience compared to some of the scary Porsche issues I read about every day, for 8+ years. Google... "IMS failure". That's all you need to type. It's an issue that Porsche still refuses to own up to.
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
I thought I'd take a shot so I called the local Chevy dealer, asked the service advisor if they knew of or had any kind of program concerning the HB wobble problem, great, I already knew but what the hell worth a shot right.
So I asked and reply "Huh" uh no we don't know NOTHING about that nor do we have any replacement program.
You could try calling General Motors and see what they say 
So I expected a different answer
I just figure when the time comes I'll go with Powerbond or ATI as recommended, have one of the local independent shops do it
NSF
So I asked and reply "Huh" uh no we don't know NOTHING about that nor do we have any replacement program.
You could try calling General Motors and see what they say So I expected a different answer
I just figure when the time comes I'll go with Powerbond or ATI as recommended, have one of the local independent shops do it
NSF