2007 GX 470 220k miles smoke at startup

[rtpatter]

My GX recently started smoking at startup. Vehicle has been well maintained and hasn't used any oil. Just had the power steering pump replaced mechanic says PCV on pump lines are dry so he doesn't think the PCV on power steering pump is bad. I find it hard to believe the valve seal started leaking this badly in such a short period of time. See attached video and let me know what you think.

 

[Rednexus]

I'd pull the vacuum lines off the PS pump, loop them together with a vacuum hose connector, then cap the nipples on the pump and see if it still smokes at startup.