TSB for harmonic ballancer issues?
Thread Starter
Racer
Joined: Mar 2008
Posts: 280
Likes: 3
From: West Greenwich Rhode Island
TSB for harmonic ballancer issues?
UPDATE 9/01
Just got the call from the dealer, he said the harmonic balancer bolt was finger tight!!! The mechanic checked the VIS report on my vert( which I purchased in Jan of this year) and found out it has been in for service for a harmonic balancer issue about 3000 miles ago. He checked the harmonic balancer and ordered a new bolt and washer. Hopefully all is good. I still can't believe it didnt work itself off the crank!!
Hi all!
Went to watkins glen over the weekend and got to participate in the driver intro laps ( had Marcos Ambrose in my car), and car was squealing and shredded a belt on the ride home. Seems the harmonic balancer moved forward and is off from the rest of the pulleys and tearing up the edge of the belt. I know there is a TSB on this issue (wobbling harmonic balancer) and my vet is an 07 and still under driveline warranty. Does anyone know the the Technical Service Bulletin number for this issue? My hoodliner got tore up from the shredded belt, does anyone think GM will cover that and the belt?
Thanks for your help
Just got the call from the dealer, he said the harmonic balancer bolt was finger tight!!! The mechanic checked the VIS report on my vert( which I purchased in Jan of this year) and found out it has been in for service for a harmonic balancer issue about 3000 miles ago. He checked the harmonic balancer and ordered a new bolt and washer. Hopefully all is good. I still can't believe it didnt work itself off the crank!!
Hi all!
Went to watkins glen over the weekend and got to participate in the driver intro laps ( had Marcos Ambrose in my car), and car was squealing and shredded a belt on the ride home. Seems the harmonic balancer moved forward and is off from the rest of the pulleys and tearing up the edge of the belt. I know there is a TSB on this issue (wobbling harmonic balancer) and my vet is an 07 and still under driveline warranty. Does anyone know the the Technical Service Bulletin number for this issue? My hoodliner got tore up from the shredded belt, does anyone think GM will cover that and the belt?
Thanks for your help
Last edited by pinballfanatic; Sep 1, 2011 at 03:49 PM. Reason: Update
Le Mans Master
Joined: Aug 2004
Posts: 6,412
Likes: 1,295
From: Bluffton, SC
Unless there was another TSB I'm not aware of, the original one only applied to the first 11,039 MY 2005 cars. The 2007 should not have been affected by the TSB. It's a big job, so you're very lucky to have that warranty.
Race Director
Joined: Jun 2005
Posts: 10,909
Likes: 2,701
From: Phila Suburbs 2023 C8 & 2013 650ix
If the pulley has in fact moved forward then the center bolt has come loose just at in the 2005 TSB. If the bolt is loose do not start the engine. The pulley will spin on the front of crank and damage the crank as well. And the pulley may fly off causing other damage to the front of the engine and the car. Tow it to a dealer.
CF Senior Member
Joined: Feb 2006
Posts: 23,313
Likes: 25
From: Tucson Arizona
I'm sorry about the problem. You're lucky you made it home...if it threw the belt you'd overheat in less than a minute (not to mention the potential for collateral damage). Tow it to the dealership...good luck!
This is a good example that the crank-bolt pulley issue isn't limited to early VIN 2005's....it can happen with any model year C6.
This is a good example that the crank-bolt pulley issue isn't limited to early VIN 2005's....it can happen with any model year C6.
If the pulley has in fact moved forward then the center bolt has come loose just at in the 2005 TSB. If the bolt is loose do not start the engine. The pulley will spin on the front of crank and damage the crank as well. And the pulley may fly off causing other damage to the front of the engine and the car. Tow it to a dealer.
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
Le Mans Master
Joined: Oct 2004
Posts: 6,813
Likes: 287
From: Toronto Ontario Canada
I'm sorry about the problem. You're lucky you made it home...if it threw the belt you'd overheat in less than a minute (not to mention the potential for collateral damage). Tow it to the dealership...good luck!
This is a good example that the crank-bolt pulley issue isn't limited to early VIN 2005's....it can happen with any model year C6.
This is a good example that the crank-bolt pulley issue isn't limited to early VIN 2005's....it can happen with any model year C6.
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