newtosuburban

I have been complaining about the cabin noise since we bought our Suburban a year ago. They first said it was a tire out of round. I had the service manager ride in the car with me and he acknowledged the noise. Then they told me that it was when the engine dropped to the 4 cylinder mode and there was nothing that could be done. Most recently, they told me it was the insulation and roof bows. They completed the repair on the roof with new insulations, etc. It did not help and I did not think it would. I feel confident that when the car drops to 4 cylinders it can't handle the weight of the car and the engine has to work too hard to pull it. All you have to do is step on the gas and it goes away. It does not happen when the car is moving at 65mph because it never drops to 4 cylinders. It usually happens around 35 to 40 and 48 to 53. My brother has a Yukon and it makes the noise but not as loud. I think this is because the car isn't as heavy. Ours gets so loud the keys in the cup holder will rattle. I have tried buying premium fuel and always keeping the car in 4 wheel auto. Neither helped. I suspect it is a major fix and GM is trying to avoid it buy identifying other areas as the culprit. I just can't believe that this issue was not discovered in the development of this car. I feel like a sucker paying $73,000 for a luxury Chevrolet SUV and having to deal with this. We had a Navigator before and we definitely made a mistake by switching to GM.

I purchased a Suburban about a year ago and we have the same noise problem. Early on, I took it to the dealership and had a service technician ride in the car with me. He did hear the noise and followed up later that it is when the car drops down to 4 cylinders to conserve fuel. He said it cannot be turned off and there is nothing they can do about it. This makes sense because it occurs in the 35 to 45mph range and the 50 to 53mph range at a constant speed and the engine drops to 4 cylinders. If you are going over 60 mph the car doesn't drop to 4 cylinders and you don't have the noise. The worst part is that ours is getting worse. We were driving the other day and it was so loud that it caused our keys in the cup holder to vibrate and rattle. I have family members that have a Suburban and a Yukon. Neither is as bad as hours but they do have it. I think the Suburbans are worse because of the car weight and our particular car may be worse because we have the larger wheels?? I find it hard to believe that Chevrolet is producing and selling $70,000 plus cars with this problem. I switched from a Navigator to the Suburban and was initially very excited about it but now I regret my decision. It is going back for servicing this week and I have told them the problem is getting worse but I am certain they will come back with "nothing can be done." Hopefully, if enough customers complain, Chevrolet will have to address it.