I have a Buick Regal 98. When I get around 15 mph the inside of my car gets loud. At first I thought I had a hole in my muffler, but I figured it would do that even when in idle or during acceleration. It also does it when I'm driving down a hill thats why I doubt its my muffler. The noise is getting increasingly loud and those who ride in my car ask me why my car is so loud. Anyone think I may need new tires or wheel bearings?
If you have a bad wheel bearing then you will have a vibration that you will notice. If that is the case then you have a bad wheel bearing.
If you had a hole in your muffler it would be loud all the time and be even louder upon acceleration. You could check this first by getting under your car while its running and see if exhaust is coming out where it shouldn't be.
Subikid90
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