[THEFERMANATOR]

The valve cover gaskets are a trouble area as they have the wiring harness for the injectors molded into the gasket. The problem with the crankcase vent system is that FORD vented the crankcase fumes back into the air intake. This is also where the intercooler cleaning comes in. When the inside gets covered in oil it doesn't cool the air very well anymore. Most people modify the vent so that it goes into a catch can to catch the bulk of the oil and then the vapors go out through a hose routed to under the engine. Oil leaks on anything with that kind of milage is to be expected though. The air filter system is another weak point as well as the camshaft position sensor. The camshaft position sensor and the tools to change it should be caried with you at ALL times with a 7.3L though.