What is this?

Can anyone tell me what this Is and what it does? Some sort of vacuum?

 

looks like secondary air pump for warming up cats during cold start

 

That is what makes a weird sound when I start my 4 banger.. it runs for about 10 sec and then I don’t hear it anymore.. what is it???

 

Smog pump? Emissions bs.

 

yep emissions bs

 

.....that’s it? Emissions bs!? Can I take it off and gain 20hp like diesel deletes?? Hahahah

 

Turbo

 

Yiiiiiieeeeeeesss I knew it!

 

This, its for the air injection system for emissions

 

Damn, they make everything out of plastic these days!

 

Maybe it's the Toyota version of the Turbo-encabulator developed by Chrysler:

https://www.youtube.com/watch?v=MXW0bx_Ooq4


It's certainly not a Plumbus.

 

What year is your truck? Around 2011 or 2012 when that pump came out had a bad habit of shitting itself, later years changed it to run after you turn the key off to burn off moisture. It also has a foam filter that many guys swap out because they sometimes disintgrate and ruin it too,

 

Some crap shit that will probably break in a few years. Toyota added them to V6 2nd gens in 2012, but had them in 4cyl 2nd gens I guess since they came out (on top of being a present problem in Tundras, as well as 4Runners). Ongoing history of these pumps failing. Couple threads in 2nd gen section about it. Toyota now has protocols for newer model vehicles to run at shutdown to purge moisture from the valves on these bastards to prevent the valves from degrading. 2012s currently getting repairs covered after a long road of accumulating cases against Toyota. Typically when they give up the ghost they throw codes and put the truck in limp mode.

Good luck 3rd gen guys, hopefully this doesn't become a problem for you all as well. So far 2013+ Tacomas aren't being affected near as much as the 2012 guys. Anything 2013+ is usually more of a freak part failure rather than valves going to shit, and usually the pump failing rather than associated valves.

 

Its a Turbo food processor for overlanding, it dices and slices, and also grinds your Brojoe beans! - you just got the cheap plastic version, it also comes in stainless.

 

It's to pass cold start emissions. On startup your engine will run a bit rich and dump excess raw fuel and combustion intermediates into the cat, this pump with then run and give the cat fresh air to burn those fuels to warm it up. Once the cats are warm the pump will turn off or anytime it detects the cats aren't hot enough.

 

Only in TX! Mine had one here in Cali.

 

flux capacitor!

 

Yeah, those of us that appreciate the outdoor part of the State do pretty well here