I cleaned 120k miles of engine waste off the throttle body today.

Here's my method.

TOOLS YOU WILL NEED.
13mm socket wrench (prefer ratchet)
size 20 torx screwdriver
PB Blaster (for removing that torx screw, as well as cleaning the throttle body.
toothbrush
rag (lint free cloth for best results)

OPTIONAL BUT RECOMMENDED FOR SAFETY

MOUTH/NOSE MASK. You WILL be very dizzy from the extreme dosage of PB blaster fumes that you will encounter. It is NOT good for your brain cells or lungs.

Latex surgeon's gloves. They sometimes rip and tear, but they offer optimal hand movement while protecting your hands from too much exposure to the PB blaster, and any contaminants in the throttle body.


Start by disconnecting your intake pipe! Disconnect it from the box too and lift it out the engine. Don't forget to pull that hose that goes to the valve cover too.
(IMG:http://i138.photobucket.com/albums/q277/Nytemare6789/0930080804.jpg)

(IMG:http://i138.photobucket.com/albums/q277/Nytemare6789/0930080805.jpg)

Before you go disconnecting any bolts, pull on the throttle (open the throttle) fully and disconnect the throttle cable from its groove. Take out the bolt I marked with my chrome socket, and the other bolt is very close to the vacuum line connection on the plenum. You see that open hose? That's the vacuum hose. You can conveniently just pull it off of the valve that sticks out of the throttle body.

BE SURE TO KEEP THE GASKET FROM BETWEEN THE PLENUM AND THROTTLE BODY. If you lose it, buy a new one at AutoZone for 1 dollar. You probably should regardless.
(IMG:http://i138.photobucket.com/albums/q277/Nytemare6789/0930080809.jpg)

Eww!! What the fack!?
(IMG:http://i138.photobucket.com/albums/q277/Nytemare6789/0930080813.jpg)

Disonnect the bolt I highlighted, which will take care of all the wires mounted on the bottom. You're almost halfway done now, so turn the thing over carefully and disconnect the two plugs from the throttle body. There is no need to disconnect your battery for this project.
(IMG:http://i138.photobucket.com/albums/q277/Nytemare6789/0930080819.jpg)

Before cleaning. I used PB Blaster, a toothbrush, and a cloth rag to clean it. I sprayed PB blaster in until it slightly covered the whole throttle plate, let it sit for 2 min, scrubbed the hell out of it with the toothbrush, dumped it, and repeated. I used the rag to wipe away all the grime that was liquified in the process.
(IMG:http://i138.photobucket.com/albums/q277/Nytemare6789/0930080857.jpg)

After the half hour cleaning.
(IMG:http://i138.photobucket.com/albums/q277/Nytemare6789/0930080932a.jpg)

I hope this helps! (Hope it gets stickied too lol)

I got to do this soon, thanks for reminding me.

No problem! Be sure to take your time. It's an extremely easy job, as long as you don't rush and break anything.

There's really nothing to even break anyway, unless you drop it. If you drop it, it will be SERIOUSLY damaged.

so what will cleaning this do? :D im dumb

It will cure alot of idle problems.

Also, this was a really good idea for a write-up. I can;t believe I didn't think to do a write-up on this. Haha. Good job mane. :thumbsup:

will this solve my problem?
my car get muffled and sounds like a muscel car at around 4 grand
its good till then
and i can sit there and rec it all day and it fine.
hahahahahah
wooooo sorry about that

re-read what you just wrote and try again. it doesn't make any sense

haha my bad

no, this won't fix the sound. that sound is caused by your intake system and is normal

why does everyones TB look so nasty black. Mine has 156k on it and still a nice shinny gold/brownish.

look on the inside, it will be just as bad

its not just a sounds
my car doesnt go past 4400 grand
but i cleaned it and it didnt work

Well next thing I'd check is your spark plugs and wires.