Throttle body carbon cleaning

I like to be proactive and fix things before they fail. Like cleaning carbon build up on the AIR flow components. Does anybody have any HOW TO info on this?

 

https://www.tundras.com/threads/ask-the-toyota-mechanic.2404/

 

Access or buy a service manual and follow the steps for removal, clean, follow steps to install. I use a paper Haynes manual when I have questions. You can likely find a YouTube video as well if you want to go with that option.

 

BTW welcome to the forum from OKC!

 

I'm also LAZY like most people. The main thing is that I don't do the WRONG thing. I figure lots of people has already done this so that's why I ask. Did/do carbon cleaning on my 97 f150 4.6 with great results so I know how fouled it can get in there.

 

Can also find some YouTube videos.

Pretty simple job. I always hit the MAFS with some cleaner while I'm there.

 

I just did this last month, I was convinced my battery was crapping out or something because my truck kept stalling at idle. Going down the road everything was peachy, but as soon as I stopped at a signal it would die. I came across a YouTube video where a Tundra owner was describing the same exact problem and he said it was the throttle body. Sure enough. I pulled it off and the carbon buildup was pretty nasty. I went ahead and cleaned the whole air intake and MAF sensor, now it's running like a champ again. Plus I looked competent in front of my wife, which is always good.

 

Is it true that your not supposed to ROTATE the throttle flap or you will jack up the timing of the TB?
Also do you need to unhook the battery?
Again I have a 2016
Could not find a YouTube vid for my 2016.
I search YouTube for EVERYTHING.

 

Tundra 5.7L

https://youtu.be/ewMLJ9yxkBY

 

I disconnected the battery. I took off the whole intake assembly and wiped it all clean inside, disconnected the electrical from the throttle body and removed the whole thing to clean it (I found it hard to do a very good job with it still in place). Yes, I rotated it by hand as I cleaned it and got the edges with a wire brush and carb cleaner. I also got a bottle of electrical contact cleaner and cleaned all the contacts before re-assembly. The idle is always a little high at first when I disconnect the MAF sensor but within a few minutes it went right back down and it's been running great since.

 

Is there a TB manifold to clean as well?
How many miles was on your truck and did you find ANY ports blocked?

 

If you bought your truck used, the throttle body coolant bypass mod may have been done which would alter the steps to remove and install.

 

I did buy it used and there was lots of mods done like 3" lift, larger tires, exhaust, air filter.
What would I look for to verify if this mod was done?
Does it make it a more difficult job to clean the carbon?

 

OP I tagged you in this thread. https://www.tundras.com/threads/throttle-body-cleaning-how-to-question.107815/

Both of those questions are discussed.

 

There would likely be a coolant in and a coolant out port plugged off by use of some sort of plugs or caps. Might have hose stubs plugged or capped attached to it. Or else just two open holes that you would likely otherwise wonder about.

 

Yea,

Yea, I saw that and thanks.
I should be able to see if this mod was done or not when in there.
I guess I'm trying to compare my 97 f150 4.6 triton CARBON cleaning to the tundra (which I have not done yet).
F150....T.B. , tb MANIFOLD (which really gets blocked with carbon) and egr valve. I do this about every 50k/75k miles with zero problems.
At 456k miles my f150 has NEVER left me stranded. Hoping for the same on the tundra.