About two days ago I got my
tires rotated on my
2005 Chevy Cobalt while I was getting an oil change. This was the first time that the tires had been rotated in at least 14,000 miles (since I purchased the car). The car itself has about 36,000 miles, so I'd assume that's the age of the tires.
Anyways, whenever I go above 30 mph I hear a helicopter like sound, and it ramps up the faster I go.
Here's two videos I've recorded:
I've read that it can be caused by waiting too long to get the tires rotated, as they start to wear into a pattern, which can cause the noise.