high idle

2006 HYUNDAI SONATA
220,000 MILES • 3.3L • 6 CYL • FWD • AUTOMATIC
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MITZI GIBBS-HARTMAN
  • MEMBER
  • 36 POSTS
how to reduce the idle? it is at around 1100 RPM should be 900.
Jul 26, 2017 at 6:03 PM
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STEVE W.
  • CERTIFIED EXPERT
  • 15,116 POSTS
Check around the vacuum lines and fittings for a leak. A small leak can allow in air that the computer doesn't see and it will idle higher than normal.
Jul 27, 2017 at 11:45 PM