Yeah the UVC harness (under valve cover harness) is what causes the valve cover gasket connectors to burn up and vice versa. The connectors get loose, cause high resistance, and burn the pins and plastic. Each valve cover gasket has two sets of four connectors for 4 glow plugs and 4 110 volt injector plugs. So there are 8 pins to potentially burn out. each of the 3 components for each bank of cylinders can be replaced separately. Easy fix, though.

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Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi