2001 Hyundai Accent Car shaking slightly when driving

Tiny
MM12
  • MEMBER
  • 2001 HYUNDAI ACCENT
  • AUTOMATIC
  • 34,700 MILES
I have had this second hand car for barely two weeks. I drove it yesterday and felt a slight "shuddering" under the vehicle every time I drove. It did not give me any trouble - but it almost felt like it would stall but it did not. It was worse when the air conditioner was on, but still occurred intermittently even when I turned the air conditioner off. Please let me know if this is a serious problem requiring urgent attention or if this is a normal problem with an easy fix.
Saturday, August 1st, 2015 AT 1:43 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 34,330 POSTS
It sounds like you're describing a typical misfire condition. The logical first suspects are worn spark plugs and wires.

If the cause is spark-related, then yes, you can do serious damage to the expensive catalytic converter. The unburned fuel will burn in it and overheat it.
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Saturday, August 1st, 2015 AT 10:25 PM

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