An intermittent 'stumble' could be the spark plugs

  • by: PAUL BRAND
  • Updated: July 27, 2012 - 4:00 PM

Q I have a 2003 Hyundai Sonata with the 2.7-liter V6 engine and 110,000 miles on it. When idling in drive, it feels like the engine is randomly stumbling, one sharp stumble at a time. It does not do it all the time, and it seldom does it with the air conditioning off. When it does this, the car feels as if it wants to lurch forward slightly.

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