Engine Mechanical problem
2003 Isuzu Rodeo Question 6 cyl Two Wheel Drive Automatic 92000 miles
About a year ago my #4 spark plug exploded and shot out through the ignition coil gasket; leaving only the threaded portion in the head. I asked around and could not find a good explanation as to why this would happen. I double checked that all my spark plug sizes were correct and changed all of them. I also replaced the valve cover gaskets because there was a small hole on the the #4 gasket, but I'm not sure if that happened before or after. Ever since the engine makes a knocking sound when winding down after releasing the accelerator. There is also oil on the electrode side of all six spark plugs, but mostly on the #4 side. I have been keeping an eye on it, but also driving it ever since. It doesn't seem to be getting any worse. There is heavy carbon deposit in tailpipe. There is no water in the oil. Any ideas?
Sunday, May 16th, 2010 AT 2:04 PM