Sunday, October 21st, 2012 AT 8:43 AM
Today while I was running some errands, I got out of my car for about 5 minutes and left it running. Totally normal thing to do. Then I got back in and started driving and discovered a loud vibration/ticking/oscillation when decelerating. It only does it when coasting/decelerating, but it does not make the vibration sound when accelerating nor braking. Do you have any idea what is happening?