When I push down on the spark plug wire on the engine I fell a thump like something is hitting the spark plug what would cause this its a 98 Honda civic ex
4 Answers
If you do not here a tap or knock,it probably is just the firing of the plug that you are feeling.
It dose make a knocking noise and I don't fell it on the other spark plugs only that one
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If you here a knock,then it will be the valves, in the head,may need a rebiuld.