REPAIR DETAILS

The check engine light and the EPC light are on. The engine runs rough, feels like active misfires as soon as the engine starts. The check engine light is flashing. There are 4 codes present in the ECM, P0300: misfire detected, P0304: cylinder 4 misfire, P0302: cylinder 2 misfire, P130A: Hide cylinder. We removed the spark plugs to inspect them and found that they are all worn out, especially cylinders 2 and 4. The gap spec is .30 thousandths, they checked out at .55 thousandths. The plugs look like they could be original. We did find that there is oil down in the spark plug hole of cylinder 4 which is coming from the sealant for the cam cover. Recommend resealing the cam cover, replace the spark plugs and the coils.