It's a lot easier to make comments than it is to create and post a video, so thank you for posting videos. I did this about a year ago on my wife's 2020 Sienna. I didn't remove the intake because at the time replacement gaskets were on backorder everywhere I looked, but I learned a few things that will hopefully make this job easier for anyone else doing it. The most significant is that the cowl, both the plastic top and the sheet metal bottom pieces, is removable on all Siennas at least as far back as 2004 models and possibly also first gens. That makes getting at anything towards the top rear area of the engine a LOT easier. Also, since the engine is offset towards the passenger side of the van, you van reach all three plugs and coils from that side. I's a royal PITA with the intake still on, but it's doable. Several small battery powered "puck" style lights with hooks and magnets help, as does an inspection mirror. One other thing in general is I would be hesitant to loosen or tighten spark plugs with an impact, that can easily easily crack or break the ceramic portion of the plug. I learned that lesson the hard way. . . Anyway, good luck on future jobs and thanks again for sharing what you've learned.
Took me 4 hours start to finish removing the manifold and throttle body and 6 spark plugs. Had more trouble removing the wiring from the coils than anything else. And this pretty much kicked this 71 year old mans butt for the rest of the day !!!!
Took me 3 hours. Thanks to this video for making it feasible. Didn't need to remove the entire airbox, left the lower half with the filter in place with no issues.
If I may offer a suggestion, you should not have to remove the cowl to get to the three spark plugs behind the Plenum. I would remove the Plenum and install a new gasket. I'm about to change the spark plugs and ignition coils on my 2018 Lexus RX450h F Sport; my reasoning is if you're going to go through the trouble of changing the spark plugs, you might as well do a complete job. Change the Intake Manifold Gasket as well as the Throttle Body Gasket, and clean the Throttle Body with a Throttle Body Cleaner only. Also, while you're in the kitchen, clean your Mass Flow Sensor with a Mass Flow Cleaner only. Another thing I would do is clean or replace your Engine Air Filter, and while you're at it replace your PCV Valve. If you care about your vehicle and you want to keep it running well for a few more years, do a complete job and don't perform half measures. One last point, it would be wise to run a scan on your vehicle before and after you perform a tuneup.
Pretty much the same as my 08 that I’ve done because of failed coil packs. It sucks, now we got a 2018 with 55k and the 60k service requires spark plugs changed, so I guess I’ll be doing this horribly experience again soon😅
Unplugging the rear coil packs from their harness was job impossible. My front harnesses required some screwdriver persuasion. No way I was getting tools back there. Was thinking dismounting and rolling the engine forward. Don't know.
I watched. But this was not good. And gets to the hardest part and says yup so just do what i did in the front and ends video.. 😂 atleast we seen what needs to be done.
Toyota engineers knew that when they designed it. Toyota should have forced them to change spark plugs every day for several weeks and they'll change their mind
@@georgekraus9357I mean this is a problem in any V configuration transverse motor. Efficient packaging is a pretty fair trade off for a job that will happen 2-3 times max in the life of the vehicle.
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It's a lot easier to make comments than it is to create and post a video, so thank you for posting videos.
I did this about a year ago on my wife's 2020 Sienna. I didn't remove the intake because at the time replacement gaskets were on backorder everywhere I looked, but I learned a few things that will hopefully make this job easier for anyone else doing it. The most significant is that the cowl, both the plastic top and the sheet metal bottom pieces, is removable on all Siennas at least as far back as 2004 models and possibly also first gens. That makes getting at anything towards the top rear area of the engine a LOT easier. Also, since the engine is offset towards the passenger side of the van, you van reach all three plugs and coils from that side. I's a royal PITA with the intake still on, but it's doable. Several small battery powered "puck" style lights with hooks and magnets help, as does an inspection mirror.
One other thing in general is I would be hesitant to loosen or tighten spark plugs with an impact, that can easily easily crack or break the ceramic portion of the plug. I learned that lesson the hard way. . .
Anyway, good luck on future jobs and thanks again for sharing what you've learned.
Took me 4 hours start to finish removing the manifold and throttle body and 6 spark plugs. Had more trouble removing the wiring from the coils than anything else. And this pretty much kicked this 71 year old mans butt for the rest of the day !!!!
Torque spec for spark plugs: 13 Foot Pounds (156 Inch Pounds)
Torque spec for coil bolts: 7 Foot Pounds (84 Inch Pounds)
Intake plenum bolt and nut torque spec: 15 Foot Pounds (180 Inch Pounds)
Throttle body torque spec: 7 Foot Pounds (84 Inch Pounds)
Thanks for the torque specs!
I was able to reach around without removing anything with the help of a camera snake. Took less then 2 hours and saved me a grand.
You would be a great neighbor!!!! Many can learn a lot from you!!!
Thank you
Took me 3 hours. Thanks to this video for making it feasible. Didn't need to remove the entire airbox, left the lower half with the filter in place with no issues.
Yup
Took me 3 hours. Thanks to this video for making it feasible.
yup
If I may offer a suggestion, you should not have to remove the cowl to get to the three spark plugs behind the Plenum. I would remove the Plenum and install a new gasket. I'm about to change the spark plugs and ignition coils on my 2018 Lexus RX450h F Sport; my reasoning is if you're going to go through the trouble of changing the spark plugs, you might as well do a complete job. Change the Intake Manifold Gasket as well as the Throttle Body Gasket, and clean the Throttle Body with a Throttle Body Cleaner only. Also, while you're in the kitchen, clean your Mass Flow Sensor with a Mass Flow Cleaner only. Another thing I would do is clean or replace your Engine Air Filter, and while you're at it replace your PCV Valve. If you care about your vehicle and you want to keep it running well for a few more years, do a complete job and don't perform half measures. One last point, it would be wise to run a scan on your vehicle before and after you perform a tuneup.
Thanks for posting this! Just did mine yesterday and this was a great reference guide.
Thank you for the positive comment
Pretty much the same as my 08 that I’ve done because of failed coil packs. It sucks, now we got a 2018 with 55k and the 60k service requires spark plugs changed, so I guess I’ll be doing this horribly experience again soon😅
You answered my question in about 30 seconds
Bro why you don’t cover in take hole with soft towel ,,,?? That can be nightmare if something dropped in
Good idea to change the rear coils and keep them in case the front ones go bad. To prevent having to go threw that again
I’ve done that job so many times, I’ll do it again lol
Unplugging the rear coil packs from their harness was job impossible. My front harnesses required some screwdriver persuasion. No way I was getting tools back there. Was thinking dismounting and rolling the engine forward. Don't know.
Man no wonder the dealership charged me $810 just for labor to replace these plugs.
It is a time consuming job
Finally a video to make the Spark plug replacement on these shitboxes easier. Thanks !
No problem 👍
What’s the torque on the plugs? Gutentight?
Can you share the part number for the intake air manifold gasket
Yes! here: amzn.to/48R0LlY
Thank you.
@@mastertech6049 New throttle body gasket needed?
It’s doable, but such a hassle for the three in the rear! Wow!
that's the only thing hahah
Thank you for making this nice video. How many km on your van when you changed the spark plugs?
around 70k miles so about 100k km
5:00 for the rear plugs.
Hi, can I change air intake manifold gasket too
Yes, of course
what was the code of orginal one ?
not the easy method.. I was hopping you were going to do it without removing the manifold.
Never use Autolites in a Toyota or a Honda. You will be doing it again
Only one I can find
@@mastertech6049 really? The dealership doesn’t have them? Doubt that
@@HondaSolutionsit was during the pandemic. Shortages everywhere.
Where did you get the intake manifold gasket?
Oem
Are these spark plugs better than the oem ?
I'm not sure, as long as they are iridium
no, all that work, only to put crappy autolites when u can just buy the oem denso
How many hours did this take?
2 hours
I watched. But this was not good. And gets to the hardest part and says yup so just do what i did in the front and ends video.. 😂 atleast we seen what needs to be done.
Thankyou for sharing
I will pay a professional and
What a giant PITA. Easier to sell the car 👍
it is what it is
It's worth it because overall Siennas are very reliable.
So basically just remove the entire engine to get to the rear 3 plugs? Shame on you, Toyota!!!
basically hahahaha
Toyota engineers knew that when they designed it. Toyota should have forced them to change spark plugs every day for several weeks and they'll change their mind
Actually Toyota forced their Engineers to designed like this so they can make services money.
@@georgekraus9357I mean this is a problem in any V configuration transverse motor. Efficient packaging is a pretty fair trade off for a job that will happen 2-3 times max in the life of the vehicle.