5th Gen Engine Bay

Just picked up my new 4Runner, looking around the engine I see something I’m unfamiliar with…what am I looking at? Haha
Small pump looking thing right behind the passenger headlight.

As another note, sure really like this new 4Runner! Pretty excited to get some miles on it!
Took 4 months, but the 2024 TRD Pro is here finally!

 

Secondary air injection pump. Swap the foam filter out.

 

Alright. What’s up with the filter?

 

it has a foam filter that breaks down over time depending on the environment your in like very dry high temperature ones or like me constant off road where there is a lot of dust they clog up, I started out by washing mine out all the time and it started to tear so I did the mod.

 

Never knew about that. Thanks for the heads up, I’ll check it out

 

Got a link to the mod???

 

Does that cover just pop off? Or are the filters replaceable? The mod looks pretty good seems like that solves the problem altogether

 

https://trail4runner.com/2018/12/18/4runner-air-pump-mod/

 

Yeah get on it. Replacement pump is ~$500 at the dealer in 2023 dollars.