Underhood Wiring problems of the 1996 Ford F-350

I own a 1996 Ford F-350 crew cab with a 7. 3 liter powerstroke diesel. The wiring harnesson the intake manafold to controle the glowplugs melts and so does the valve cover gasket of witch the wireing harness passes through it with a plug x's 2 and than the internal wiring harnesses burn up under the valve cover requiring the engine to be dissasembled to the point of the head to replace the components. Further more on the clutch linkage there is a plastic bushing that disintegrates quite often under normal use. Parts are available but the wireing problem is very expensive to fix even yourself. The clutch linkage is fairly easy to fix but should last longer than it does.

Under the hood fire, electrical short, faulty wiring harness overheated, will provide more information.