I have a 2005 Suburban with 116,000 miles and an interesting noise. I have heard a similar noise before when a car or truck has a tire rub. The tires are not rubbing, checked that. It happens going straight, and turning,and is very random. It truly sounds like a tire rub or even a internal vibration of sorts. It occurs and happens for maybe a second, and goes away. It sometimes happens in 3 to 4 spurts at a time. It even seems to be at below 25 mph, in side streets and parking lots. Just wondering if anyone has had this or has an idea.