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.
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.
