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The engine just started running rough, as if it was miss firing on one cylinder. how can i check it? i'm not a major problem mechanic.

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Run the engine, and pull the spark plug cables off,( one at a time ) and listen and watch to see if there is a difference in the running of the engine, then refit the cable and check the next, until you see that without the cable connected that the engine dunning makes no difference. That will show which cylinders are not firing. Then , when you know which cylinder is not firing, get a spark plug, connect it to the cable and crank the engine and see if you have a spark, if you do, then the cable is ok and its likely that the spark plug is faulty. if no spark then its likely the cable is faulty. Hope that helps

Posted on Feb 02, 2010

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Posted on Jan 02, 2017

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