2003 Pontiac Grand Prix Logo
Posted on Jun 22, 2009
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2003 pontiac grandprix gt 3.8 , cold morning start loud noise

Freshair box front left of car where air filter is ,on cold start first 3or 4 min. there is a loud sound like bearings grinding or bad solinoide you can hear it from inside the car put hand against air box felt vibrateing please help thanks

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  • Master 4,803 Answers
  • Posted on Oct 23, 2009
Anonymous
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Joined: Oct 10, 2009
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The Antilock Brake Hydraulic Control Unit is directly under the air cleaner box. Is your Antilock Brake light coming on?

  • Donna French Aug 24, 2014

    I have a 2.4 not a 3.8

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