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what causes a valve cover gasket plug to get really hot and melt?

Im trying to diagnose a problem, the plug gets super hot and it even melted. Truck runs only on about 7 cylinders
 

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Are you broke on the side of the road?

You need to pull the valve cover and check for a shorted out wire.
 

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Okay i realize i have some electrical issues, that is what i am asking for. Not on the side of the road, just badly need the truck running correctly.

It was running perfectly fine when i parked it and the plug WAS metled before i put it back together, it didnt just melt when i tried to start it. I noticed it was melted before i even got it all put back together
 

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I have left them connected and I have disconnected them.

I am going to move this to the proper forum. The 911 forum is for broke down on the side of the road somewhere. I realize you need it running. Probably get more response in the OBS section.
 

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Okay i realize i have some electrical issues, that is what i am asking for. Not on the side of the road, just badly need the truck running correctly.

It was running perfectly fine when i parked it and the plug WAS metled before i put it back together, it didnt just melt when i tried to start it. I noticed it was melted before i even got it all put back together
Then you have an issue somewhere with the wiring since it was melted before you did anything.

so you prolly have a short or break in the wiring.
 

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Bad glow plugs is usually the cause of the melted wiring how old are the glow plugs? I would ohm them first before you start replacing stuff more than likely you have a couple bad ones.
 
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