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fuel pump

  1. Audi A5/S5 Tech DIY
    I have a 2008 A5 with 120,000 miles, 3.0TDI. Normally, when I turn on the ignition, I can hear the fuel pump priming for a few seconds. However, the past week, I hear the fuel pump priming but it doesn’t turn off. I hear that loud whine for about 20 seconds, and even after the engine has started...