2003 Mercury Marquis Idle

2003 MERCURY MARQUIS
90,000 MILES • V8 • 2WD • AUTOMATIC
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LENARD49
  • MEMBER
  • 1 POST
Will not idle after engine gets warm.
May 12, 2010 at 10:58 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Clean out the idle air control valve and test the throttle position and mass airflow sensor with an approved cleaner.
May 12, 2010 at 11:02 AM
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