Electric Engine Exhaust…Whats Up With This?

This week’s post comes in the form of a question sent in by a reader. Question- Say, I’ve been digging around in my engine room getting ready for the upcoming boating season and I noticed something that seems weird to me on my engine’s muffler. You can see in the photo I sent in that my muffler is the black cylinder in the lower right side of the picture. It has what looks like an engine sending unit screwed into my muffler with two wires coming out of it. My engine is a diesel so I don’t ...