Pop! I heard it in the recesses of my driving awareness. The smell started a few days later. I showed up at 7:15am, the diagnosis was in by 8:30 (axle seal broken), the car was ready by 10:30. I picked up the car after work. All is well. I've been going here for seven years and they are always fast and friendly. I also enjoy chatting with B or W about life and cars when I have the time.