My spark plug has died on my twice so far in the last one year. Yesterday, the car vibrated visibly when I started it in the morning and I determined maybe the plug was giving a problem again. Once I changed out all four plugs things returned to normal. I bough a bosch plug about six months ago and changed the plugs then. could there be something killing the plugs. Also reading through past postings I see where it was recommended to change the coil head? on the cables. Can someone tell me where the coil head is, maybe I need to change this as well. My car runs fine now just thought maybe I need to change this. Is there a place I can buy spark plug cables except at the dealership. Thanks all
Mendie