While cleaning up my engine compartment I came across this un-connected wire. I can not find it's counterpart. Should I be worried? What is it for?
George, Probably the block heater.
George,
I did not see anything for it to hook to using my magifier, but best to take the end and move it around seeing if there is any connectors unhooked with in range of the unconnected end. There could have been something right behind the cable tie and wire loom that wire hangs from, but I could not tell what exactly it was. Looks like it plugs into some type of sensor. Manufacturers often put things there than are not used in all applications, and that could be your case.
It looks like a black wire and probably has no wire number on it, but, maybe you might be lucky and there is one on it somewhere.
Looks like the wire that plugs into the bottom of the primary racor fuel filter purge system.
Felix Mathieu
99 u320
Turns out that Felix is closest with his answer. Our Racor filter system appears to be much newer than other components in the engine bay. Best guess is that the wire is no longer needed. There is no place to connect this wire. It was actually tucked in among others. We've been operating the coach for almost 16 months with no deleterious effects.