Transmission cooler question

Im planning on adding a aftermarket transmission cooler to my 21 5th gen. Do I need to purge out air from the transmission lines like I would if I bled the brakes or purged air from the cooling system?

If so how do I go about getting air out of the lines?

 

If everything is hooked up correctly, you shouldn't have to do anything other than potentially add some transmission fluid to accommodate for the extra hoses and cooler.

 

Okay, so no worries about potential trapped air?

 

Just out of curiosity, why are you adding a trans cooler?

 

It's not really a "closed" system like your cooling system or brake lines. The pump should be able to circulate fluid to anything connected. You'll probably need to cycle through the gears a few times initially to get fully circulated. From there it's going to be like checking and adding fluid. Bring it up to recommended temperature and add fluid as needed. I'd bet it's less than a quart. https://www.youtube.com/watch?v=zS8rqg1PVwU

 

Towing a 2,700 lb trailer

 

Not sure if you saw: https://iconicfabricationoffroad.com/products/2010-4runner-transmission-cooler-bracket-kit

 

This is very nice