Toyota Secondary Air Injection Valve

Look inside of Toyota secondary injection switch over valves, one of these failed

[@45AMT]

Thanks for the video Peter. I hear old man winter knocking at your shop door. Tell him to go away we ready for spring!

[@HouseCallAutoRepair]

That was fun. Always like tearing things apart to investigate why it failed!

[@styverdyver]

Thank you for sharing the post mortem procedure on this part. I enjoy taking things apart to investigate why they fail or how they work!

[@tacocin]

Super interesting! I've never been satisfied with simply replacing parts and moving on. I want to know exactly how the defective part failed. As you tore into this component, I was totally engrossed into it! Thank you sir!!!

[@billneu9520]

When I was a small kid I pick stuff up off the curd and try to fix it at 12 years old I did fix a couple of things back then I know always take apart the broken items to see why they did not work thanks for your videos Bill n LINY

[@captainken6310]

Keep doing the parts tear down we really enjoy seeing how things break have a nice day…✌🏻

[@dozerman53111]

Very interesting video. I always want to see what happens inside. Thanks Peter. !!!!

[@dalepremo3695]

Excellent Detective work! That was very interesting and informative, so thank you for filming it.

[@mscir]

Great video, thanks. Reminds me of the junky smog control addons they used before they designed engines to run with lower pollution.

[@baburejaz]

Very interesting investigation video. Thanks for your time efforts and filming.

[@The_Savage_Wombat]

This is great. It looks like I can just pull and replace the valves on top of the assembly. I won't have to remove the entire assembly. Thanks for the information.

[@FloridaSunMitochondria]

Love your videos especially the 4Runner ones. Thank you.

[@oddballdynamics.9658]

I used the Hewlett Technologies delete kit. Installing the kit was much easier than replacing that valve. 08 Sequoia. I did this a month ago and so far so good.

[@mjgh2002]

hello OD, would you kindly share the part number pls? and if you have the video that helped you installed it would be a plus!! also did you passes emission test? thx

[@patluvsvettes]

I know on the Tacoma they say to do the filter mod. You basically replace the stock foam filter and replace it with an aftermarket filter. The stock foam filter is known to break off and have the pieces sucked into the pump or the valve.

[@moriwaki1105]

Got the new valves direct from Japan...saved £550. Half hour to fit. Easy Access on FJ thankfully.

[@mode1charlie170]

Great job. I was hoping you would put 12v on the valve unit to see if the solenoid was working.

[@claytonmetz3116]

I wish you had put power to the electrical parts to see if they were stuck as well

[@Startfinishlinef1]

That's my situation today. This explains a lot. Off to the shop I go.

[@ImranKhan-wr8sr]

Great man ur really nice person.ur helping us also ur views carry on.

[@Nakai2024]

Great video brother ! Thanks for the insight.

[@faustogonzalez8397]

Absolutely outstanding !! Thanks so much!

[@johnnycramer5841]

Still driving my 4runner but took a chance and bought a 2009 Nissan frontier recently from our client. Pristine condition....just hope it runs half as good as the Toyota. Timmy C

[@moriwaki1105]

Having same problems on my 2012 FJ Cruiser....ordering new ones tomorrow.

[@markreynolds3850]

Thanks for sharing this video ,very interesting.

[@markreynolds3850]

Great video.

[@ccadama]

@Toyota Maintenance. Thank you Professor Peter for today's lesson on what went wrong with that Toyota secondary air injection valve. My question is whether the problem that caused the one port of the air injection valve was also fixed on that Tundra? If the source is still running too rich or leaking raw gas, won't the new secondary air injection valve suffer the same fate in the future? Hope you and your family stay safe and well.

[@michaela1655]

I wonder if that truck had a "hot tune"? If the exhaust gas temperatures get really high, I could see how it could cause a melt down in those vales.

[@ne2i]

I think the rubber was swollen because fuel gasses were introduced on that one bank and the rubber was not designed to be exposed to it.

[@billsimpson604]

It looks like gasoline vapor or oil vapor backed up into the valve and caused the rubber to swell, preventing the valve from sealing. What caused that is the great question? Crazy as it sounds, it might be possible to sand down the rubber gasket to allow the reed valve to shut enough for it to mostly work. You might be able to replace the distorted round gasket with a piece of gasket material, or a piece of rubber tire inner tube held on with some JB Weld epoxy. An O ring of the appropriate thickness might also work. Although even shriveled up as it is, the little round gasket might still work well enough for it to get rid of the trouble code, once the reed valve sealing is fixed. It would be an interesting experiment, on your own vehicle, of course. First, the solenoids need to work, or it is junk, except for the screws.

[@michaelbrennan7148]

Thank you

[@FredTheLutinoCocatiel]

Do they make rebuild kits? My 1988 S10 four cylinder I clean the EGR valve and it worked fine because the diaphragm was not broken.

[@boilednuts]

No rebuilt kit for these? Seems simple enough.

[@Lunas2525]

Rebuilding them isnt the issue the issue is getting to them. The other issue is they get water in them and rust takes over. On the 5.7L the air pumps are down by wheel well they get water in them and send it through the system and rust ruins the valves and pumps. Each of those valves are only sold as a unit so 110 for cheap non oem parts for a system that adds extra air for 15 seconds to the exhaust so the fuel can keep burning down the exhaust to heat up your catalytics faster to meet a arbitrary EPA limit. This system is purely an emissions system...

[@boilednuts]

@@Lunas2525 Thanks for the info 👍

[@The_Savage_Wombat]

@@Lunas2525 I think you can just remove the valves and solenoids and replace them from disassembling the new part. This is probably a lot easier than removing the entire thing and switching it out. The lower half is just a manifold with no moving parts.

[@sartainja]

You are thinking too logically, Mr. Spock. It is now all about plug and play replacement with high prices.

[@user-my2pl2io9u]

My question is, since this is purely emissions based is it even necessary to replace and/or install a bypass kit? As long as you live in a state that does not do emissions testing. @Lunas2525

[@on-site4094]

Is there a rebuilt kit available for the air injection valve ?

[@Echo_5_Charlie]

Did you have to replace any gaskets along this process? Intake gaskets, valve gaskets etc? Thx!! Great video 🙌

[@markreynolds3850]

Is there a valve kit and rings repair kit for this ? Can it be repaired?

[@rxcalvosa]

Wasn't there a recall for these?

[@johnlacroix1639]

WOW AAAAAAAAAAA++++++++++++ again great video I liked it a lot keep up the great work,,,,,I keep asking for your address to work on my truck with no replay ???? what up with that Sir ???

[@Saladon89]

hello, i luv ur videos, i learned alot and started doing my own maintenance for my 2013 highlander limited. I have a problem with my parking brakes or Emergency Brakes, every time i apply it, the lever sinks to the floor and the brakes barely holds the car, I took off the rear driver side tire and rotor to adjust the brakes but it made no difference, i cant find any videos online with detailed information on fixing the parking brakes, what do you think the problem is? can you make a video of it? thank you

[@surak24]

adjust both sides and under the chassis there is a link between the cable brake that you could adjust as well.

[@Saladon89]

@@surak24 i already fixed it XD, the issue was the adjusting nut above the pedal which was difficult to reach, had to remove the lower dash cover to reach it

[@DaBinChe]

you need to get some JIS scewdrivers

[@craigkucing9779]

Would you recommend an air oil separator or an oil catch can for the crankcase breather?

[@tacocin]

Catch cans work. However, carbon build up on anything is caused by hot oil vapors. That said, the newest oil specification IILSAC GF-6 or API SP has additives that virtually eliminates hot oil vapors. This oil was engineered specifically for GDI engines that have trouble fouling intake valves. Multiple empirical tests shows that it works. It is available in a number of different weight viscosities and negates the need for a catch can.

[@MattyLight30]

What task are these supposed to perform?

[@jayinla228]

Could you PLZ make a video on how to adjust sequoia E-brake? Mine is very weak NO KZbin VIDS.

[@jamram9924]

These valves are on top of each valve cover on the 4.7 in lieu of the starter motor. On the 5.7 liter engine these valves are buried under the intake and starter relocated under the right exhaust manifold. Both are excellent engines though...

[@johnbee7729]

And is the location on the 4.6 the same as the 4.7?

[@jamram9924]

@@johnbee7729 I don’t like to mislead you. You might want to pull a photograph of a Google search for engine photos of both engines. That should give you a much better idea.

[@user-mp9xu9of8k]

I don't understand how Toyota can charge so much for a simple part like this, thanks for the teardown!

[@Calvin7007]

Peter, How Much Did That valve Cost?

[@Smellslikenarvasa]

I can't believe it's that simple. Yet, Toyota charges almost $500 for each component, for a $3,000 service to replace both valves and both pumps. Luckily, on my 2009 Sequoia 4.7, the first time they went bad, they were covered under warranty. Not so lucky the second time around. Do they offer new reed valve plates? Could one clean the housing and just replace the plates? I was excited to see this video! Thank you for posting it. I see you have the P2443 code video from a couple of weeks ago. I'm going to watch it now. :-)

[@paulparoma]

Toyota likes to make money, too.

[@Seattle808]

That’s why they make a bypass kit, no need to screw with fixing it and paying a crap ton every time or fixing it.

[@Spillmansgarage]

@@Seattle808 unfortunately CA emissions check for that. Have to have a working system.

[@Roboticdoughbull3k]

@@Spillmansgarage but people like myself are in PA and we don't have to worry about commifornia so we like to know about the option

[@senorcabrera73]

Are you ganna replace that secondary air injection valve with a new one on the toyota or you just going to put it back again?

[@tacocin]

replace

[@samuelquesada7368]

Any body know where I can order that part?, I have tried auto zone, auto parts, Amazon, eBay, and I can’t find it anywhere, I really appreciate any help, thanks 🙏

[@michaeltemple895]

Can this system be deleted on Tacoma?

[@morehannibaltruckservi]

Me tundra is year 2013 is code P2443 secondary air injection system Swifting stuck closed what is Parts a location part

[@oreally8605]

Gear head level? 8.

[@paulbriggs3072]

This whole air pump-/secondary air injection valve business has been the absolute bane of my life for several YEARS. My Tundra has needed these replaced- get this- THREE TIMES!! Some kind of shameful record for Toyota. I literally work to pay for my truck, and use the truck to work. I lost track of how many thousands I have paid, and paid and paid. Right now it needs it AGAIN, and I just drive the thing in limp mode and don't have the bottomless bank account to pay for what has been the worst truck problems I have ever had. It won't pass inspection so for now while I continue to work to pay for the truck, it's un-inspected.

[@BoogeymanDracula]

bypass kit is 400. hewitt tech

[@mjgh2002]

would you pass emissions test with bypass kit? - thx

[@paulbriggs3072]

@@mjgh2002 At this point I sold the truck for scrap ($1400) and now drive a used Silverado.

[@mjgh2002]

OMG what a disaster!! i stand by toyota 💯% maybe this will be a game changer 😱 4me if the code pops up again P2442!! wondering if i just keep reseting for the rest of my life 😇 can i get away with this every time? ….i have a carplay device with an integrated OBD that monitors my truck computer. will there be a point in life that the reset won’t work ? thx for your valuable advice!! and thank you all for this valuable blog

[@paulbriggs3072]

@@mjgh2002 The water in those pumps eventually corrode the next thing down the line which are the switching valves. The codes for both failures show up. (here is the video he mentioned which shows that not just the pumps, but the valves go bad. kzbin.info/www/bejne/iHjSpYWhqaqja8U The bypass kits are not legal for passing inspection but I almost went with it. I am not a vehicle code expert at all and suspected that I would have to pay some shady mechanic to get rid of the codes and install it. In the end frame rust (another big issue for Tundras) was a part in scrapping the vehicle. I live in the New York State where bad winters and salt affect the frames. Toyota had a class action lawsuit against them and the courts ordered them to replace the ENTIRE FRAME if too rusty. I'm past their deadline. Their frames are open on the side like a C-shape and collect mud and water like a gutter with no drain holes (a terrible design) making them really rust out. In fact the gas tank straps were also corroded badly too. I now have a used Silverado as I mentioned.

[@imtherealjoeyd]

where are you located?

[@renzojauregui347]

👍

[@yippmane7322]

I want to replace my stock air intake with a hps performance short ram air intake on my toyota 2014 xle rav4 ...what is your opinion on this? Will it cause check engine light? Do I need to reprogram the vehicles computer to adjust to it?

[@eppenga]

I thought brake cleaner was pretty safe on rubber?

[@applesauce689]

Oh noooooo, brake cleaner is very aggressive and will dry out rubber causing it to break or crack

[@TheJmich2001]

Toyota replaced them on my 12 Taco for free. Best mfgr on the planet!

[@wim0104]

cold? your sleeves arent even buttoned up ;-) does the PCV valve feed back to this intake? why all that dirt?

[@tacocin]

Yes -- directly to the PVC system

[@wim0104]

@@tacocin ah, the "secondary air" IS the crankcase junk. Thanks EPA.

[@mikeb6386]

Need to delete / bypass that part and forget about it forever.

[@Saladon89]

damn, i want a career change but feel that i am too old and too late, i am 32yrs old and drive trains, its a comfortable job with good pay and good benefits, but i also want to become a mechanic lol

[@JASONSMITH-dn2zi]

Flip the Reed valve over

[@stevencochran2845]

BUY A HEWITT TECH BYPASS MODULE and say good riddance to the entire emission system.

[@mjgh2002]

would you pass emission test with the bypass ? and what are the down sides of the bypass if any? thx

[@stevencochran2845]

@m g no, you won't pass emissions. You would need to go to a smaller town that doesn't do them. It is for competition and off road use. And Hewitt explains this point. Your Vehicle will run like bat outa hell after you install and you'll see an increase in mpg.

[@The_Savage_Wombat]

@@stevencochran2845 I think some do pass emissions after bypass from reading comments on this design flawed part.

[@stevencochran2845]

@@The_Savage_Wombat we have pretty strict vehicle inspections in Texas, and I haven't failed one since the improvement. 2 years now.