There are some posts here on Mud about the compass. I think it does require an additional cable that runs to the mid-rear of the truck. some info here
https://forum.ih8mud.com/threads/what-did-you-do-with-your-80-this-weekend.586191/post-14994326
found these threads
Melted EGR Vacuum Modulator - https://forum.ih8mud.com/threads/melted-egr-vacuum-modulator.827784/
https://forum.ih8mud.com/threads/melted-egr-modulator.511781/...
You'd think that would blow off the hose and maybe the modulator cap would come off. This looks like some sort of molten object blew out of it. It's definitely heat related.
I was checking for a exhaust leak. I had occasional exhaust smell in the cabin. I was running a shop vac exhaust up the exhaust. When I got under the hood air was blowing out the bottom EGR port and the hose to the modulator was missing. This...
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