does water clean carbon out of intake manifold

Zer0 [OP] Asymptomatic-Known Member

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I plan on cleaning my intake manifold and throttle body when I do a tune-up this weekend. When I use to play with Hondas, all I did was remove the intake and basically spraying throttle body cleanser inside the butterfly opening and brushed it with a soup-strainer. Is it the same concept cleanup this 2.7L or set yall make amend recommendations? I was also inquisitive if you guys recommended exploitation seafoam in there to flush out gunk I couldnt clean? I have 219K. Thanks
Zer0 [OP] Well-Known Member

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bump! anyone? Anyone use seafoam? does IT really exploit...i recall i might try this but whats the best style to use it? through the gas or the vaccuum? thanks
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I used severance cleaner and a brush to clean mine. Also sprayed the ports to clean them out. worked fine..
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Approximately 3 weeks past i ventured into this project, but i did non however use seafoam. I completely removed the entire intake manifold system and used xylol, gun body dry cleaner and roughly long brushes and shop rags to get everything out of intake plenum, runners and throttle body. My hypothesis is that seafoam will capture some of the crap out but not each of it. Your still gonna receive baked on sludge in there thats gonna take many of treatments to get out. Honesty your best stake is to get all your supplies cook (new gaskets, cleaners...ect,) then tear into it. Should only make up a two mean solar day see if everything goes right.
Besides to i installed a PCV catch can to keep the formation of goo in the future. I utilised a water extractor for an aerial compressor and it works great.

Besides be prudent with your choice of cleansing agent happening the throttle body, supposedly there is a silicon coating on the flirt to prevent the buildup of sludge. Make sure you use THROTTLE BODY cleaner because this will non strip that coating unsatisfactory. If you use Carb cleanser you will remove that coating and it will come through harder to remove sludge buildup off the butterfly in the future,

Last edited: May 14, 2022
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Thanks for the response! I wasn't planning on pickings the unscathed throttle body apart lol. I was just planning along removing the intake pipe soh I can access the throttle butterly. Then retributory exploitation a eight-day brushwood and throttle body cleaner to decent away what I can contact with the encounter. Do you think this is good sufficient? What's the difficulty level of dismemberment the whole throttle body and what is this gasket you speak of? Thanks
ARB1977 It's a beaut Clark

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any pics of your beguile tin setup?
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what gasket are you talking well-nig 043RZ? is it difficult to withdraw apart throttle organic structure? what is the difficulty level for dismemberment the throttle body? thanks.
043RZ Long-familiar Member

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Honestly if you real want to get all that gunk kayoed of the intake assembly, your going to have to pull the entire intake organization (pics coming shortly of the serve ) The new gaskets that im talking roughly are as follow:
1. Intake manifold gasket and Intake Plenum gasket (both gaskets do together, got mine from Advanced Machine Partition)
2. Throttle Body Gasket (Civilised Auto District)
3. 2 EGR valve gaskets (Dealership unfortunatly)
I volition note that i did butt against a job with Advanced Auto getting me the reprehensible gaskets... Apparently Toyota made the 3RZ in the Tacomas both in the California emissions standards and Federal standards. Mine was the California standard. This means that the last of the intake multiply going into the head is a several shape then the Federal ones (California intake ends are oval, Federal has 2 circles per intake port). Indeed just have got them order some types and whichever one you dont involve just fetch back. Trust me i learned the hard means. This project was guess to be a 2 day project turned into a week long project because i was waiting happening parts.

Depending on how automatically skilled you are, it is very straight forward and easy to do. Just take your time and subscribe to pics of different angles of your vacuum lines and connections to help encase you forget where one goes.

Let ME get my photo bucket account ascending and running again and ill do a mini writeup with pics

Last edited: English hawthorn 15, 2022
043RZ Substantially-Best-known Member

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First matter i did was take a few pics of my connections and vacuum hoses Eastern Samoa a "merely in instance"

And some native scaffolding if your lifted

Next thing i did was pulled the intake tube and, vacuum lines, sensor connections and strangulate body off (remember to take pics of your vacuum lines and sensor connections to help with reassembly as needed)

Next i removed the Intake Plenum form the intake manifold (make sure you unbolt the EGR Valve from the back of the Consumption Plenum and remove completely along with wiring harness mounts and sensors)

Here are or s pics of what my Intake Plenum looked alike. Note my truck only had slightly over 100000 miles connected it and to me this is sort of bad, only this is what happens when the PCV vapors get put back through the intake system and yes this is normal believe it operating theatre not lol

Picture looking pour down ancient where the throttle physical structure mounts to the Plenum

Plenum runners

I also pulled the IAC valve bump off the bottom of the throttle body and cleaned thoroughly along with the throttle body itself. These are notorious for sticking and causing somewhat of a rough idle. Bash NOT use anything past than THROTTLE Physical structure CLEANER on the IAC and strangle body itself. NOTE!: The gasket for the IAC Valve is also a monger item!!! Not to expensive though.

Now connected to removing the Intake Runners

Now on to cleaning everything up. I victimised Diesel fuel to first pluck the Intake Runners and Plenum to help loosen the absolute majority of the gunk, then started brushing and running shop rags down each contrabandist. Then after that i put-upon Xylene to remove more of the burnt on crap and finally finished everything up with a hardly a cans of carb cleanser (yes you can use carb cleaner on the runners and plenum, just not on the throttle organic structure). Hears some pics after cleansing

I as wel took a a a couple of moments to clean the intake port on the head up as well with some Xylol and a cult.

At present time to reassemble. Try are the gaskets that i was talk about and the mess up with my truck being California Emissions...

Top gasket is for Federal Emission Tacomas, Bottom is Golden State. Not sure if when on the dot the bust was but like i said either detect prohibited unquestionable what your engine is or just purchase both gasket sets and return the one you dont use

Same goes for the EGR valve gaskets As healthy. The Gasket to the right is mine (Calif.), one connected the left is Federal.

Instantly reassemble everything making trusty you torque everything down to the manufactures torque specs!!!

Hear are the pics to my PCV Catchcan and its working like a charm. Whol i used was a Kobalt H2O separator for an air compressor. As wel you volition want some brass pipe fittings to custom cause your connections!! I simply utilised part of the old PCV hose passing to the Plenum and put a 1/2 inch pipe nipple in the stock hose then reduced it down to 3/8 to accommodate the Catchcan. I likewise bought 5 foot of Transmission Oil Cooler Personal credit line at Advance Auto to use for my new PCV tube which you will see in the photos below... (im going to take another pic tomorrow of fittings i put-upon so you can visually find what i did).

And hear is the Catchcan doing its job

Endmost edited: May 15, 2022
Zer0 [OP] Wellspring-Known Member

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WOW! what a write up! You should make a gross DIY for that. Thanks for the cause. I will definitely have my laptop up and squirting with your post as I do my intake manifold cleaning! How the heck arrange you keep your engine so deuced clean? Thing is brand new looking at. Really nice puzzle out bro and thanks again. You should make this a separate DIYer. What is the aim of the catch?
043RZ Long-familiar Member

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Thanks gentleman!! To keep everything clean looking, at the end of every season (summer and wintertime) i degrease and wash the engine and undercarriage down with Krudkutter motley with 25% Krudkutter and 75% water. I put that in a pump up garden sprayer and spray everything down, Army of the Pure sit maybe take a brush to some things then rinse it down. Where i live they tend to habituate alot of road salty in the winter and i have got about a 1/4 mile dirt gravel road leading heavenward to my house. After awhile things tend to get a bit grimy, especially after winter. Like i said i do the undercarriage to to help prevent whatever corrosion.
The purpose of the catch can is to prevent combustion gases and oil vapor form going back into the intake manifold and gunking everything back up. The catch can simple pretreats the gases by means of removing the oil/gas vapors before it goes back into the intake to get toughened. Every vehicle produces blowby. Blowby is when combustion gases escape aside the piston rings and cease up in the crankcase. These gases mix with oil vapors and need an hightail it route or the gasses leave build up and blow out seals. And so once you clean the intakes you will ne'er have to worry virtually pull the intake back apart again. The catchcan will need to be emptied every embrocate change, but i feel one extra step in an oil commute it worth the peace.

After i did this i did notice that my truck idled smoother and felt like information technology ran better and crisper. Each all told im happy with the results

Pick up are pics before and after modification

And pick up is a pic of the fittings from the intake going to the new hosiery.

Hold up edited: Crataegus laevigata 16, 2022
I just wished-for to thank you all for posting the pics and for the added subject field comments.
Last workweek my hand truck started loafing higher than normal, and it as wel threw a code for the throttle position sensor. After doing few searching, I came across this thread. Rather of just buying a new detector, I decided to remove the throttle body and do some cleaning.

Because of being lazy, I ended up doing it twice. The first fourth dimension I just removed the intake tube and cleaned inside the throttle body as far as I could with an honest-to-goodness tooth brush and gas body cleaner.

After putt everything posterior together, the idle was still high. So I decided to do it moral the second time around, and removed the restrict body American Samoa I should have done the first clock time.

Some things I wanted to highlight based on my experience:

- Complete idea on taking pics before starting in case you forget where some of the vacuum lines go

- You must absent the entire throttle trunk to ut the job right. There is no right smart you canful clean totally the dirt behind the butterfly with the throttle body yet connected to the uptake. Justified though I got a good deal of dirt unconscious the first sentence around without removing the throttle torso, there was so much many I couldn't reach with just the tooth brushing.

- Although it is a relatively simple job to remove the throttle body, there are two coolant lines that can follow a PITA to slay. Not rocket science simply lots of patience - peculiarly if you hold big hands. I could barely squeeze my hands in there with a solidification of small plyers to break the metallike clips lax.

- Definitely need to take the IAC to fill out the cleaning task. There was so much unimproved inside those passages.

-You must have an impact screw device driver - just in case - to remove the four screws that hold the IAC in place underneath the throttle body. Those screws are tight! After reading happening this and other forums, it is very easy to round them off.

-Well-nig the gasket and o-phone: Autozone and/or other local car part stores will non have the o-ring that goes with the IAC. That is a dealer only partly, not too expensive. I think I paid like 4 bucks for it. The gasket for the gas pedal body buns represent found at autozone for look-alike $1.50, lol. I ended up replacing both true though I didn't really needed it.

I did not remove the rest of the intake for a to a greater extent in-depth cleaning as shown happening the pics above - because I needed to get the truck back on the moving cursorily. But that is something that I will coiffure in the near future.

Anyway, the idle is back to normal now. I assume it is because of altogether the nasty dirt that came off after I clean the throttle body.

Once again, thanks all for the good info
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wow, decent write up. you should undergo the pics and narrate a video on yourtube for a how to video, they get into't have ace for the 4 bangers, most everything like this is only the 6 cylinder videos
I detected the pcv catch jar already has much oil sludge in it, how long did it take to collect that much?
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Non a problem serviceman! Im thankful the writeup helped in your process. Atomic number 3 for the coolant line clamps i do match that they are a trifle of a PITA to arrest to, but extensive do by needle nose plyers are what i secondhand. They really inject Handy. I got my hard at harbor freight. Just something to keep in idea for when you pull the entire intake.
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Every oil variety (3000 miles) its ready to be dumped and its good for the adjacent oil change
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wow that's beautiful ofttimes, its amazing how much that is.
I cant help but question what positive effect cleaning everything like new actually has on the railway locomotive? I mean the film on the sides of the passages is not hurting anything so I guess im locution the throttle body is the only material "needed" disassembly and cleaning required atomic number 3 far as I can regard, the rest is just cosmetic.

I do agree the enamor can idea is a modernistic everyone should do and something they should figure retired how to do at the factory, you should create a "how to" mod step for IT so others can escort IT operating theatre just take what you have here and get along a "how to" intake cleaning thread as well

Live on edited: Nov 18, 2022
043RZ Long-familiar Member

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The added disassembley credibly wasent needed and i dont suffer any real data to back up the necessity of intake runner cleaning... but i volition say that as i removed the consumption from the cylinder head the relentless was thick and pebbled like-minded (rough to the touch). My hypothesis is that the added texture took away from the smooth surface of the inner intake manifold which could make over turbulence and restrict a graceful entrance Oregon air into the combustion chamber. Similar i aforementioned i have no data or proof that the added cleanup ready-made a difference, but for me it was piece of mind and i know what i have now . And also know it wont build up again.
It was suggested that i do a separate sticky for this modern, but im not sure how to.
Awesome write-up. Great pics and advice. Many thanx for taking the time and effort to make this valuable DIY maintenance available. I really like the catch can idea.....brilliant idea..................
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yep, that's kinda what I was thinking.
Eastern Samoa to the steamy that's not for you to do but to suffer it gone you, you make a new separate "how to" string and past one of the mods will exist able to pin it to the exceed of the first page of this forum making information technology a sticky.
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