2003 KIA SEDONA
128,000 MILES
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JCOFGH
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  • 1 POST
trouble getting up to speed, clunking sound at 40 mph, makes a rough sound/vibration when at stop, vibrations get stronger when given gas
Jan 4, 2013 at 5:27 PM
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KHLOW2008
  • CERTIFIED EXPERT
  • 41,814 POSTS
Symptoms indicates possible misfiring. Is the Malfunction Indicator Light showing?
Have the spark plugs and related components checked.
Jan 6, 2013 at 2:02 PM