2000 Kia Rio My car bucking while driving

2000 KIA RIO
67,500 MILES • 4 CYL • FWD • MANUAL
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HEYJOEY43
  • MEMBER
  • 1 POST
I bought this car 1 day ago, and when I tested it seemed pretty well. When I turn the engine on
ia seems to start fine but while is heating for a couple of minutes the engine seems to "speed up" slightly or it seems to miss and buck.

What could be the most probably diagnosis on this car?
Aug 24, 2010 at 9:38 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Has the check engine light come on?
Oct 15, 2010 at 3:20 AM
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