Question about 1999 Hyundai Accent

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Car bucks and sputters when you give it more than 1/4 throtle.

I checked all vacuum lines there fine. there is oil leaking out of what seems to be the valve cover.

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Change the valve cover gasket. There's a chance that oil has seeped into the spark plugs so you should pull them and check to see if they are fouled. This would account for the rough engine since it's not firing on all cylinders. I hope this solves your problem. Best of luck!
Greg

Posted on May 14, 2009

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