My truck hasn't been running well lately. At first it felt as if the clutch was slipping, it would shake a little in all gears, even when it was above 2000 rpm. Feels like a serious loss of power. A few days ago, my engine light came on, so I checked the codes, and they were p0300, p0306, and p0120. The p300s are cylinder miss fires and the p120 is throttle position. The p300 indicates that it is more than one cylinder misfiring correct? Iv replaced ignition coils and spark plugs before, I was wondering what would be the best way to go about this? Obviously I'll replace the 6th cylinders ignition coil and spark plug, but how can I tell what other cylinder is miss firing? And how many ignition coils/spark plugs should I buy? Just two?
Apr 30, 2016 at 1:02 AM
