hello fellow toyota prius V owners. while prodding around my new to me prius clap mobile, ive discovered a few alarming things lol. one being the mystery hose. where the heck does this hose go to? i have a youtube video of it but it wont let me post the link?
I can see the top end of that hose; it drops down, and can't see too far where it's going. Guessing it's coolant, and maybe headed for the Exhaust heat Recovery system? Not that large a diameter though. Could also be coming round to the throttle body (if coolant). Without pulling off the air box I can't really see, and I'm not that ambitious, at least not this early in the morning. Will take a look in my Repair Manual bootleg.
This guy: And other end goes to throttle body, as I'd speculated. Looks like someone did a throttle body heating delete. Above screen grab from Amayama website. In Japan Prius v is called "Prius a": Radiator & water outlet for Toyota Prius a ZVW40W - Genuine parts - Amayama Note, I'd link to Toyota USA parts site, but was revised a year or two back, is more or less useless now.
Had nothing else happening, took some pics of our ‘10 Prius hatchback ( should be same). The lower hose going into the throttle body: is the other end of the one you show, plugged with o2 sensor. It may be cut short, require replacement. the upper hose coming off throttle body ends up here: ^ hard to see, right in middle of pic, partially hidden behind EGR pipe. It’s going into a T on side of steel pipe there:
I wonder where the liquid flows out of the fitting onto which the hose should be attached? Nobody has cancelled the circulation of liquid, hasn't they?
It’s two hoses, branching out to throttle body and returning. I think if OP were to remove engine air box and take a few clear photos, all would be revealed. basically a throttle body coolant delete.
