Ok i am working on my buddies repo truck a 02 7.3 with lovely cali emission:doh:,,, Im doin glow plugs,gaskets,controller and harnesses b/c shorted glow plug fried the module... I noticed it had a popping noise coming from the exhuast so when i pulled the valve cover i found an exhuast valve rocker arm tapping the oil baffel on the left cover. I pulled the rocker last night and the push rod ends look find the on the bottom it looks like it was beating against the head gasket. Anyone ever seen this before? I just got a new pushrod and wanted to ask before i just put it back in