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Posted

FYI.. It appears our problem has made national news. See this article. http://www.cbsnews.com/news/is-your-gm-vehicle-making-you-sick/.

 

Gotta love this GM line: "These are potential problems with any vehicle, but the large interior cavity of an SUV, crossover or minivan can amplify the effect, much like the way the sound box of a guitar amplifies the vibration of the strings," Wilkinson said.

 

Embrace the boom people!!!

  • Like 1
Posted

Well, call me crazy, but we bought another one. Same issues, but this is literally the only vehicle that can fit my family comfortably. The dealership did the road force balance and added the extra "sealing" to the head liner, but still the same issues. We, as a family, have just learned to deal with it. The kids keep head phones on, and I keep the music cranked up. Maybe the booming is causing me to go insane and thats why we bought another one. The 1st one we bought was a GMC Yukon XL SLT with 20" wheels. This time we bought the Chevy Suburban LTZ with 22" wheels. There is no difference in the sound, my opinion only. All the trucks have this issue. We drove numerous models from all three (Caddy, Chevy, GMC). The dealership wanted to keep trying things, but I told them NO, and we picked it back up. They did however note on the paperwork that the truck was not fixed, but that the customer wanted it back.

 

 

I can understand where you are coming from. So, the Dynamat will reduce the booming significantly. Maybe your dealer can install it on the roof and rear quarter panels below the window.

 

However, there is one issue that I would watch for and that is the bow behind the sunroof coming detached. If one sees the roof lifting there than leaking is likely to develop at some point. On my truck that sunroof-bow was reattached and then came off again. To me that was the straw that has me pursuing a repurchase. I can't imagine dealing with a leaking sunroof for years to come.

 

Frank

Posted

 

Gotta love this GM line: "These are potential problems with any vehicle, but the large interior cavity of an SUV, crossover or minivan can amplify the effect, much like the way the sound box of a guitar amplifies the vibration of the strings," Wilkinson said.

 

Embrace the boom people!!!

 

Well it would seem since they a) know this, and b) managed to address it on prior generations they should have no issue addressing on this and future vehicle generations... at least one would hope.

 

Frank

Posted

Based on the sales numbers released this morning, gm sold about 210,000 of these suv's this year. So if this issue affects 5% of vehicles that's 10,000 unhappy customers that purchased a high price point vehicle....is it actually more or less, I dont know. Hopefully they take care of this soon..

Posted

 

Well it would seem since they a) know this, and b) managed to address it on prior generations they should have no issue addressing on this and future vehicle generations... at least one would hope.

 

Frank

 

I hope you are right, but GM has been tracking this issue for over 18 months (See Four Knuckles third post in this thread). IMO, this is a design issue that can't be fixed easily. The roof bows, new wheels, new tires, road force balancing, new rear ends.....all band aids.

Posted

Glad to see this happening, FINALLY. My suggestion to each of you - take the time to send an email to the writers of each of these stories volunteering your experience so they realize this isn't some black hole from a few owners. Pound them. SOMETHING positive will come from this - I have no doubt.

  • Like 1
Posted

My videos are on my Google Drive. I don't know how many email address requests I can keep up with but why don't I get a few of yours and maybe you can assist with the sharing. Sharing is good you know.

 

I tend to think that the main issue here is structural rigidity and bonding. The roof bows need to be bonded when the metal is this thin. I think addressing the vibrations are indeed band aides. Let's face it, vehicles vibrate, it's normal, the body structure just needs to resonate at a frequency well above that of the disturbance. If GM can figure out how to keep roofs attached they will have taken a step in the right direction.

 

Frank

Posted

My videos are on my Google Drive. I don't know how many email address requests I can keep up with but why don't I get a few of yours and maybe you can assist with the sharing. Sharing is good you know.

 

I tend to think that the main issue here is structural rigidity and bonding. The roof bows need to be bonded when the metal is this thin. I think addressing the vibrations are indeed band aides. Let's face it, vehicles vibrate, it's normal, the body structure just needs to resonate at a frequency well above that of the disturbance. If GM can figure out how to keep roofs attached they will have taken a step in the right direction.

 

Frank

 

If you go to each video click sharing (The person icon with the plus sign) and select "Anyone with link can view" you can just post the video links here. Then anyone can clink the links to view the videos. They would not be able to view any of your other google drive content. Only the links you select to share.

Posted

The freeway ones are better and are still on my GoPro. Still, it is hard to see it flex. However, with that much area, only a little flex is required to really change the pressure within the vehicle.

 

Frank

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