2005 Buick La Crosse Strange noise on initial acceleration

98,000 MILES • 6 CYL • FWD • AUTOMATIC
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RIESKAMG
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I keep hearing a strange noise upon initial acceleration of every trip I make. It sounds like a pump priming or something powering up. It only does it right after starting the car. As soon as I put the car in drive and move forward a few feet I hear the sound. If I sit there and idle for any period of time, it still makes the sound. Is this normal?
Aug 6, 2010 at 6:01 AM
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RIESKAMG
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turns out the strange noise was the ABS system self test.
Sep 10, 2010 at 5:19 AM
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