I enjoy your videos, and have learned much from you! I have a 2006 Tundra, so I will be mindful of the repairs you share on the trucks like mine. Thank you!
Great Tundra videos buddy! You’re saving us lots of cash. I have this issue on my 06 SR5 4.7L. I’m thinking that I’m going to replace all the components (air pump, diverter valve, and both air check valves to be safe). The CZcams community appreciates you. Take care! Keep the Tundra (1st gen) videos coming! You are a great mechanic bud.
The knowledge that a loose bushing could fall off the intake and go down into the manifold makes this video worth a lot of money. Thanks for the warning.
Had the same p2443 on 2012 Tacoma . I tapped on the valves with a rock as I was two hours away from anywhere ,then reset with obd2 .It’s been fine ever since
Great video… I have recently found magnets that are approximately same size and shape as many Coins today…. They work great to help keep “steel parts etc. “ in place ;)
Great mechanic & great instructions as always. One of those EGR pumps failed on my 2008 Toyota Tundra 4.7L SR-5 Double Cab and my dealer wanted nearly $2500 to replace them. The issue will produce code P2440, P2441, P2442 or P2443 and the truck will go into "limp mode" where power is reduced by half and the vehicle will not exceed 50 MPH. I went online and bought a *_Hewitt Technologies_* SAIS bypass computer. I installed it in 5 minutes and the problem never returned. I think the cost of the bypass computer 5 years ago was around $350. I still have the truck and the problem never returned. Passed Maryland VEIP (emissions) a few times since with no problems.
I just got a P2443 on my Tundra 2009 5.7. I had read about the problems with the pump a long time ago and heard about the hewit bypass. What do you think I should do. P2443 is the valve stuck open so I could replace it like peter did in the video here. Or should I just get the hewit kit to avoid any potential issues with the pump/other parts of the system? The truck only had the check engine light on but never went into limp mode. I reset it and it didn't return but its only been a few hours.
@@turdsandwicher It really depends on variables relavent to your situation. I chose the Hewitt bypass because I lacked the time, tools, and resources required to do the job myself. I still have the truck and the problem has yet to return. Some advice, if you choose to do the work, be sure you have the required time, tools, patience, parts, and a spare vehicle at your disposal incase there is a problem or delay. Also, be sure to watch a few different videos to gain perspective from different mechanics. While the author of this video was very thorough, it would be a fool's errand not to search out additional advice. Hope this helps.
@@johneverett957 The most difficult part about installing the bypass was inserting the block-off plates between the EGR tubes. The place where they must be installed are up near the firewall. If I had it to do over, I would remove the hood (bonnet) and rig a lift or a small crane allowing me to lay horizontally above the motor while I install the block-off plates between the EGR tubes. Aside from that, you're home free with a few cables to hookup. One other thing, there is peelable sticky-back on the back of the little computer which comes with it. It's like 3"wide x 4" long x 1/2 tall. Be sure you properly clean the surface (with brake cleaner) of whatever area you intend to affix the little computer. If you do that, it will remain affixed practically forever. I still have the 2008 Tundra and the bypass problem resolved by the Hewitt hasn't returned and I passed emissions (Maryland) a few times, since. Hope this helps. *_TRUST !!_*
Thanks Peter for continuing to make incredibly useful videos and saving the backyard mechanic a lot of hard-earned cash. I have a 12 Tundra 5.7 with the TRD supercharger. Just got the error code. Do you happen to know if the supercharger manifold cover is similar in terms of removal as the one you were working on?
I've watched several of your videos and you're one of the most diligent mechanics out there, and I can sense you're an honest one as well. The other YT mechanic, that'll say it like it is, is Scotty Kilmer! I've heard that this secondary air injection is a common problem on this generation Tundra (2007-2013). It's an expensive repair for a part that serves absolutely no good purpose other than to line the wallets of smog/environmental politicians. I'm thinking about bypassing this shitty valve by purchasing a bypass kit I've read about. But do you know whether it's legal? If it throws a code when getting it smogged, and it won't pass, it would make no sense to install the bypass kit.
Peter I replaced the air pumps and the vavles and i still get same code (P2443). also mulitiple misfire code but engine runs smooth. I replaced coils, spark plugs, fuel injectors,PVC vavle. purge selnoid. some times run fine for days no codes then all of asunden will throw code and all lights go off once and sometimes runs rough when this happens other times runs great even though indicator lights are going off. need help can't figure out whats happening. Only thing at this point I can think of is got a bad new vavle.
Did you have to replace any gaskets along this process? Intake gaskets, EGR valve gaskets, air injcetion valve gaskets, etc.? THANK YOU!! GREAT VIDEO 🙌
Love your videos. Always great information. What is your opinion on the AIP bypass options like Hewitt Systems? I know it isn't a official toyota part, but these AIPs are nothing but an expensive pain
Peter, I can't wait until you get a fourth generation Prius/200h 2ZR-FXE... I would love to see an air intake manifold cleaning, PCV valve removal and replacement.
@@ToyotaMaintenance if you were in LA or south... Since I had a PCV valve fail on a car that ended up having a blown head gasket, I'm all about preventative maintenance. By the way, the Toyota that had the blown head gasket and the PCV valve was bad was a 2012 Prius V. I have also encountered a bad PCV on a Nissan (approximately 60,000 miles) and replacing it recovered nearly 20% of its gas mileage.
@@paulparoma on some engines, the PCV valve is less than 5 minutes and the part itself is under $7 if you have a dealership participating in the parts dot Toyota dot com system in your area. it only gets expensive when you pay for their overpriced shipping.
Peter, or others, what is the role of the Diverter Valve? does it select between Bank 1 or Bank 2? I replaced both Check Valves, but still get a P2445 code.
As an owner of a 05 tundra who has this issue I have been checking prices and the parts alone are over 500 the total job runs 2k to 4k plus. And there is a 400 dollar bypass kit that would have saved this owner that much and provided he doesn't live in a smog state would have been fine...
This system does 1 thing speeds up the warm up of the catalytic system to make it come to temp 15 seconds earlier. Imho engineers are pissed off they are forced to include environmental cheats like this and they made them intentionally difficult to repair and expensive to service. Putting components in the valley of the engine... On the 4.7 they put all of this the fan and the starter in the valley yes if the sais or starter go bad on the 4.7 intake throttle body and fuel rails need to be pulled just to get to the components. On that 5.7 those valves are probably rusted shut another issue is the fans that feed those valves air are in the wheel wells they get water logged and stop working till drained... A fix is to put a small drain hole in the rubber housing...
@@Lunas2525: Although the starter is difficult to access on the 4.7, adenso did an excellent job of designing the starter. The contacts and brushes are heavy duty and last well beyond what is expected on many other trucks like Fords, GM and Ram. The air pumps/fans last an extraordinary long time as well. Cardone makes a rebuilt version of that air pump, but longevity is unknown. The location of the right bank air pump was not the best choice. Many owners have relocated it to a higher location and also rerouted the hoses to minimize any accidental intake of water. Overall the Tundra has proven itself to be very reliable/dependable.
Thats crazy. On my 2009 impala I changed secondary air valve in less then 45 minutes and never had to remove the intake. I'm in no way a mechanic either. Toyota's seem to be very hard to work on at times.
We see our bypass kit customers have WAY TOO many problems with the aftermarket junk parts, particularly the pressure sensor portion of the air switching valves. Don't bother with aftermarket parts if you are actually going to go through the trouble of replacing the system.
@@jeffreybass5479 the air pumps are inside the right fender. They are always replaced as a set. Toyota updated the air pumps to remedy the situation with the air pumps and switching valves. The old design allowed water to enter the air pumps, which would then send it to the switching valves. Once at the switching valves, the moisture corrodes them internally causing them to fail. Which is when you replace the switching valves, you replace the air pumps, and always at the same time. I've done several under warranty.
It has nothing to do lubrication, or service life. The problem is water entering the air pumps, because of a shitty design, and then getting pulled into the switching valves. The air pumps have an updated design with a water guard to help prevent water ingress
@@packingbone1953 mine is clean as a pin and runs like a gazelle ...... 5.7l, TRD cold air intake and TRD dual exhaust ...... she’s a hog, and I love her!
Everybody makes those awful plastic intakes nowadays. And then those sockets fall out. The surface on that thing is smooth rather than ridged. Seems like that's part of the problem.
Man ur the best mechanic I’ve seen in a long time , ur full of wisdom , integrity, and knowledge...✅
Thanks Mr Peter... is always helpful to know a few tricks to make the repair easier
my pleasure
I enjoy your videos, and have learned much from you! I have a 2006 Tundra, so I will be mindful of the repairs you share on the trucks like mine. Thank you!
I would have liked to see the install, even if from a distance, I really enjoy your videos!
hopefully in future
@@ToyotaMaintenance
Do we need to change pump also
Or only valve
Great Tundra videos buddy! You’re saving us lots of cash. I have this issue on my 06 SR5 4.7L. I’m thinking that I’m going to replace all the components (air pump, diverter valve, and both air check valves to be safe). The CZcams community appreciates you. Take care! Keep the Tundra (1st gen) videos coming! You are a great mechanic bud.
Thank you brother for contributing your kwonalge to auto machanics MAY GOD BLESS YOU AND YOUR FAMILY AND YOUR BUSINESS...
The knowledge that a loose bushing could fall off the intake and go down into the manifold makes this video worth a lot of money. Thanks for the warning.
Had the same p2443 on 2012 Tacoma . I tapped on the valves with a rock as I was two hours away from anywhere ,then reset with obd2 .It’s been fine ever since
have you still been good? Just got a p2443 on my 09 Tundra 5.7. I reset the check engine light and its stayed off for a few hours.
@6:30, Peter I gasped when I saw the Doorman logo. Say it ain't so!
put a bug in that thing.
parts supplied by the owner this time
It's Dorman, not Doorman. I have their EVAP canister, and it works very well.
@@mscir Better yet, a wasp.
Thank you Peter. Nice work.
Thanks Peter! I'm about to take on this task on my truck.
Those rims and taillights are cancer
the ride was very weird/unusual on test drive
Don’t forget the gas cap, mirrors, and all the other tacky chrome.
Thanks for the video. Gives me a good idea what's involved with replacing those valves.
Have a great day my friend.
you too
Great work, thank you.
Great video… I have recently found magnets that are approximately same size and shape as many Coins today…. They work great to help keep “steel parts etc. “ in place ;)
Great mechanic & great instructions as always. One of those EGR pumps failed on my 2008 Toyota Tundra 4.7L SR-5 Double Cab and my dealer wanted nearly $2500 to replace them. The issue will produce code P2440, P2441, P2442 or P2443 and the truck will go into "limp mode" where power is reduced by half and the vehicle will not exceed 50 MPH. I went online and bought a *_Hewitt Technologies_* SAIS bypass computer. I installed it in 5 minutes and the problem never returned. I think the cost of the bypass computer 5 years ago was around $350. I still have the truck and the problem never returned. Passed Maryland VEIP (emissions) a few times since with no problems.
I just got a P2443 on my Tundra 2009 5.7. I had read about the problems with the pump a long time ago and heard about the hewit bypass. What do you think I should do. P2443 is the valve stuck open so I could replace it like peter did in the video here. Or should I just get the hewit kit to avoid any potential issues with the pump/other parts of the system? The truck only had the check engine light on but never went into limp mode. I reset it and it didn't return but its only been a few hours.
@@turdsandwicher It really depends on variables relavent to your situation. I chose the Hewitt bypass because I lacked the time, tools, and resources required to do the job myself. I still have the truck and the problem has yet to return. Some advice, if you choose to do the work, be sure you have the required time, tools, patience, parts, and a spare vehicle at your disposal incase there is a problem or delay. Also, be sure to watch a few different videos to gain perspective from different mechanics. While the author of this video was very thorough, it would be a fool's errand not to search out additional advice. Hope this helps.
How was it installing the bypass?
@@johneverett957 The most difficult part about installing the bypass was inserting the block-off plates between the EGR tubes. The place where they must be installed are up near the firewall. If I had it to do over, I would remove the hood (bonnet) and rig a lift or a small crane allowing me to lay horizontally above the motor while I install the block-off plates between the EGR tubes. Aside from that, you're home free with a few cables to hookup.
One other thing, there is peelable sticky-back on the back of the little computer which comes with it. It's like 3"wide x 4" long x 1/2 tall. Be sure you properly clean the surface (with brake cleaner) of whatever area you intend to affix the little computer. If you do that, it will remain affixed practically forever.
I still have the 2008 Tundra and the bypass problem resolved by the Hewitt hasn't returned and I passed emissions (Maryland) a few times, since. Hope this helps.
*_TRUST !!_*
@@timsextonthere is a tool called a top creeper that allows you to work on the top of the engine while laying on your stomach
Thanks for your video. So when you get a P2443,you definitely will replace the part,without testing it further ?
Interesting information and video.
Peter, If I knew you were responding to comments today, I would have written one.
Thanks Peter for continuing to make incredibly useful videos and saving the backyard mechanic a lot of hard-earned cash. I have a 12 Tundra 5.7 with the TRD supercharger. Just got the error code. Do you happen to know if the supercharger manifold cover is similar in terms of removal as the one you were working on?
Does the 2006 double cab share the same motor as the 2007 4.7L v8 tundras/Sequoias
It’s always good to toss a few bolts into the intake every 50k , helps remove carbon build up and trims the excess material on the valves for you.....
I've watched several of your videos and you're one of the most diligent mechanics out there, and I can sense you're an honest one as well. The other YT mechanic, that'll say it like it is, is Scotty Kilmer! I've heard that this secondary air injection is a common problem on this generation Tundra (2007-2013). It's an expensive repair for a part that serves absolutely no good purpose other than to line the wallets of smog/environmental politicians. I'm thinking about bypassing this shitty valve by purchasing a bypass kit I've read about. But do you know whether it's legal? If it throws a code when getting it smogged, and it won't pass, it would make no sense to install the bypass kit.
These air pumps are a problem for Tacomas too, I think they're in 2013 and up. I have a 2008 Tacoma V6 4x4 no issues, rock solid @ 198k miles.
How many miles did the Tundra have before the injection pumps fail?
Can't wait til you film repairing toyota highlanders .. 2019 - 2021
Those aren’t going to need repairs for 10 more years
Peter I replaced the air pumps and the vavles and i still get same code (P2443). also mulitiple misfire code but engine runs smooth. I replaced coils, spark plugs, fuel injectors,PVC vavle. purge selnoid. some times run fine for days no codes then all of asunden will throw code and all lights go off once and sometimes runs rough when this happens other times runs great even though indicator lights are going off. need help can't figure out whats happening. Only thing at this point I can think of is got a bad new vavle.
Where could I spray lubricant to ensure a longer service life from those pumps???
Did you have to replace any gaskets along this process? Intake gaskets, EGR valve gaskets, air injcetion valve gaskets, etc.? THANK YOU!! GREAT VIDEO 🙌
Thanks Peter. Yes please open it up and do some failure analysis.
planning on that
Nice work on the Toyotas there's another tech in Hawaii works on Toyotas Roy's garage
Love your videos. Always great information. What is your opinion on the AIP bypass options like Hewitt Systems? I know it isn't a official toyota part, but these AIPs are nothing but an expensive pain
Mine has been bypassed never had a problem. Worked like a charm.
Carbon buildup inside the valve stuck it. Or the diaphragm inside one broke.
Definitely a tough job. I did this 3 times but on 4.7L Tundra. 2 2005s 1 2006. Air pump is under the intake also on those.
Sir , will replacing the AIR valve take care of P2445 and P2447? I get these codes after replacing AIR pumps.
Do you by chance have a video on how to replace front strut and shock 2007 Toyota Tacoma?
not yet
Peter, I can't wait until you get a fourth generation Prius/200h 2ZR-FXE... I would love to see an air intake manifold cleaning, PCV valve removal and replacement.
me too
@@ToyotaMaintenance if you were in LA or south... Since I had a PCV valve fail on a car that ended up having a blown head gasket, I'm all about preventative maintenance. By the way, the Toyota that had the blown head gasket and the PCV valve was bad was a 2012 Prius V.
I have also encountered a bad PCV on a Nissan (approximately 60,000 miles) and replacing it recovered nearly 20% of its gas mileage.
@@SeanPopify isn't PCV valve replacement the cheapest and easiest repair?
@@paulparoma on some engines, the PCV valve is less than 5 minutes and the part itself is under $7 if you have a dealership participating in the parts dot Toyota dot com system in your area. it only gets expensive when you pay for their overpriced shipping.
@@SeanPopify I got mine for about $13 altogether, I believe. Replacing it is as simple as can be.
I hope you can read my comments I have 2006 Tacoma 2.7 and I have replace that switching valve already and my problem is engine light keep coming back
got the 2443 code...SAI check valve stuck closed. I changed the pumps first, they were both dry and functioning! I did change the snorkel!
Hello, do u have the part no for AGR gasket?
Peter, or others, what is the role of the Diverter Valve? does it select between Bank 1 or Bank 2?
I replaced both Check Valves, but still get a P2445 code.
Super!
Hi sir ,
One personal-question if it's possible...; how much do you charge for this particular job. *
Nice job, as usual from our expert. So, how much did that repair end up costing?
As an owner of a 05 tundra who has this issue I have been checking prices and the parts alone are over 500 the total job runs 2k to 4k plus. And there is a 400 dollar bypass kit that would have saved this owner that much and provided he doesn't live in a smog state would have been fine...
This system does 1 thing speeds up the warm up of the catalytic system to make it come to temp 15 seconds earlier. Imho engineers are pissed off they are forced to include environmental cheats like this and they made them intentionally difficult to repair and expensive to service. Putting components in the valley of the engine... On the 4.7 they put all of this the fan and the starter in the valley yes if the sais or starter go bad on the 4.7 intake throttle body and fuel rails need to be pulled just to get to the components.
On that 5.7 those valves are probably rusted shut another issue is the fans that feed those valves air are in the wheel wells they get water logged and stop working till drained... A fix is to put a small drain hole in the rubber housing...
@@Lunas2525 This is California. California = Smog.
@@Lunas2525: Although the starter is difficult to access on the 4.7, adenso did an excellent job of designing the starter. The contacts and brushes are heavy duty and last well beyond what is expected on many other trucks like Fords, GM and Ram. The air pumps/fans last an extraordinary long time as well. Cardone makes a rebuilt version of that air pump, but longevity is unknown. The location of the right bank air pump was not the best choice. Many owners have relocated it to a higher location and also rerouted the hoses to minimize any accidental intake of water. Overall the Tundra has proven itself to be very reliable/dependable.
@@jamram9924 yeah and there is a gen 1 kit for 200 that deletes the sais. Just glad that I don't live in one of the 33 states that do smog checks.
Awesome
Thats crazy. On my 2009 impala I changed secondary air valve in less then 45 minutes and never had to remove the intake. I'm in no way a mechanic either. Toyota's seem to be very hard to work on at times.
Fascinating 🤔
interesting video
...and i thought it was a pain-in-the-ass to change out one in my '08 v-6 tundra...not even close...
How many miles on that engine?
170,000
Was that a dorman valve installed?
installing dorman parts is like playing Russian roulette
yes, owner brought they own parts
We see our bypass kit customers have WAY TOO many problems with the aftermarket junk parts, particularly the pressure sensor portion of the air switching valves. Don't bother with aftermarket parts if you are actually going to go through the trouble of replacing the system.
going thru this exact issue now! P2443. 173k miles...
what did you end up doing to fix it? I just got the same code however no limp mode I reset the light and its stayed off for now.
Don't forget to replace the air pumps as well. There's a tsb for it.
He said that he replaced the one on the right side a month earlier.
@@jeffreybass5479 the air pumps are inside the right fender. They are always replaced as a set. Toyota updated the air pumps to remedy the situation with the air pumps and switching valves. The old design allowed water to enter the air pumps, which would then send it to the switching valves. Once at the switching valves, the moisture corrodes them internally causing them to fail. Which is when you replace the switching valves, you replace the air pumps, and always at the same time. I've done several under warranty.
@@brokenwrist24 do you think it could get a longer service life if it was lubricated over time?
It has nothing to do lubrication, or service life. The problem is water entering the air pumps, because of a shitty design, and then getting pulled into the switching valves. The air pumps have an updated design with a water guard to help prevent water ingress
This error just came up on my FJ few days after taking it to get inspected. 2500 miles in the past year and I get a check engine light 🤷🏼♂️
Peter ...... give me a “heads-up” for any known issues on my 17 Tundra
Sorry, these are not coming yet to my Shop, too new
@@ToyotaMaintenance thank you for the reply, and continued good success!!
Cam tower leaks and possible fuel pump. Other than that top notch.
@@packingbone1953 mine is clean as a pin and runs like a gazelle ...... 5.7l, TRD cold air intake and TRD dual exhaust ...... she’s a hog, and I love her!
Is that secondary air injection a Dorman part ? 😂😂😂
Good
Happened to mine, dealer wanted over $4000 to fix
My 2007 tundra had this problem at a 100.000 miles cost me 3000.00 to fix they told me that it was caused by moisture
👏👏👏👏
No1
Everybody makes those awful plastic intakes nowadays. And then those sockets fall out. The surface on that thing is smooth rather than ridged. Seems like that's part of the problem.
bypass kit.....
Yep 100% Hewitt Tech bypass kit and be done forever.
Worked on mine
All u do is set the tripod up and let the camera do the work.
I would have removed the hood. 4 bolts.
Are you a mechanic or a blogger? Talk talk talk
Are you a DIY'er or a troller? Troll troll troll🤨