I just removed my driver cylinder head to check for a blown head gasket. After I removed the cylinder head I noticed the normal carbon build up in the #1 and #5 cylinders, but the #3 was washed clean. I checked the head gasket, and there was no signs of a blown head gasket. My spark plug was also clean (light tannish in color). I have been watching my coolant level and it is full, has never been low. It has been consuming oil. The car has 72,000 miles. I took the head to my machinist, he checked it out and determined that the valve guides were bad. The intake you could actually see and feel side to side movement.
I then deteremined that the #3 cylinder was the knocking cylinder by using a portable scope. I checked everthing electrical, even ohmed out the wire from the injector to ECM, OK, brand new injectors, so I figured it had to be internal. Could worn valve guides cause this problem? Has anyone else seen a problem similar to this? Any ideas, please let me know.
I then deteremined that the #3 cylinder was the knocking cylinder by using a portable scope. I checked everthing electrical, even ohmed out the wire from the injector to ECM, OK, brand new injectors, so I figured it had to be internal. Could worn valve guides cause this problem? Has anyone else seen a problem similar to this? Any ideas, please let me know.