I have had a random sound in my car for about two months. Something is rolling back and forth when I accelerate or brake. I looked everywhere I could think of but I couldn't locate the sound. I had identified the area it seemed to be in but I couldn't figure out how to stop it. Last night I finally took my dad for a short drive to see if he had any idea. He identified it as being in the same area that I had suspected and then proceeded to take the interior of my car down to nuts and bolts to find it. It was brutal. We had the whole center console removed, which required loosening the glove compartment and the casing around the steering wheel...and we STILL couldn't find the cause!!! We ended up peeling back the carpet, cutting into the airflow tubes with an exacto knife and shoving a long magnet down the tube. After well over an hour of work where major parts of my car were strewn across the driveway, we finally located the culprit. A double A battery had rolled under the drivers seat and entered the air vent. From there it somehow got up into the tube and was rolling back and forth. The picture is what my car looked like just before we started putting it back together.
I was ready to give up about 30 minutes in but Dad is tenacious and it was driving him crazy too. I am SO thankful that we got that cleared up because my car and I will be spending PLENTY of "quality" time together in the next month so I'd perfer not to have it drive me crazy. Of course after we put everything back together we ended up with four extra screws so I may have some rattling I didn't have before. Let's hope not because Dad's not coming with me to fix my car!!!