Hey, all. I drove my car a couple miles and I noticed a thumping sound coming from my car (I had the radio on loud). I pulled over and pulled out a cardboard case of coke lodged in my rear wheel. When I got home I noticed a crackiling sound coming from my car. It sounded like popcorn coming from the underside of my car. Is this normal and will it go away? The only thing I can think of is maybe the cardboard lodged in my car may have kicked up small rocks. Anyone have this problem?

Thanks

 

The crackling was after you turned it off? I've had cars that sometimes would do that as they cooled off-probably from the converter-muffler. If the sound came while you were moving, something might be rubbing a wheel still.