Every morning when I back out of my garage, I get this humming sound for about 2 seconds and the pedal goes soft, and it feels like the ABS is interfering. It also happens very rarely in traffic when coasting slowly up to a stop sign or light. I replaced the bomb about 2 months ago. Any ideas? -- Sean Douglas 1990 Audi 90 Quattro 20V 1992 VW Passat GL 16V Surrey, B.C. Canada