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I was cleaning out some leaves and saw this just sitting there. Admittedly, it's been a while since I've popped the hood, so this could be a repair remnant. Any ideas?
Also, apologies if this is a repeat post. Seemed like the first one disappeared.
Looks like the vent hose for the battery. Battery vents hydrogen gas when charging, has two holes to let the gas out. At battery install the installer is supposed to plug one hose (plug comes with the battery) and that hose (the short end) is supposed to go in the other hole. I forget where the other end goes exactly but the net is "away" (meaning its purpose is to get that hydrogen away from the battery). The long end is not supposed to be plugged and it doesn't feed into any mechanism/etc. Just open-air discharge.
I would say that failure to bother with all that is common across owners & techs maintaining all car make/models that have batteries with vent holes (all AGM car batteries do).
