@@firewall8047 i dont necessarily think its overengineering. It might be opposite to this. You have to remove the manifold JUST to replace ONE plug. The other five are accessible. It's kind of underengineered...
@@lavazza.vinzenzo Did you clean the lower (aluminum) intake to remove carbon build-up? Avez-vous nettoyé l’admission inférieure (en aluminium) pour éliminer l’accumulation de carbone ?
One tip you don’t ever need to replace the PCV valve unless it’s broken. They simply need the sludge making it stick cleaned out get some carb or brake cleaner and simply clean it and put the original back in. I’ve done this job and forgot to put a vacuum hose in the rear back in place and was a pain to get back on with the upper plenum back in place 🤦🏽♂️
It looks like the PCV valve is a $10 (or less) item, but the labour to get at it is next to zero when the plenum is out of the way. I think it is a good suggestion that I have not seen mentioned on any of the other sources on this topic. As you mention, it certainly is worthy of at least checking and/or cleaning (if not replacing) while one is doing the job.
Silver is one of the best colors in the is250/350. My 2010 350 is black sapphire pearl...ugly, doesn't show off the body lines and difficult to keep clean.
Literally my exact thoughts. I typically love black cars, but this one definitely doesn’t look its best in black. I’ve found Matador red, White, and this tan/sand ish color to be my favorite
Clay bar your car and give it carnuba wax (if diy) or ceramic coat (if you want it to be done properly. I did those two and took me 8-10 hours total because paint contaminants was so bad, but so worth it because water, dirt, and other nasty stuff don’t stick that much on my car. And it it does, I can just remove it with my finger (rear dust breaks for example.) :)
@@ruthnoya8424 damn ceramic coating. Nice. I didn’t bother to polish my car with any compound, I don’t know how thin the clear coat is already. What I did for now since I now added wax to my car is just get a cheap $3 car wash just to remove the dust and grime. And leave the car wash. The water just slides off from the car and I like it. Car no longer is a dust magnet. xD
@@Leek_ee right especially with these 5.4l ford's. They known for breaking plugs off in the head. Also when working with vehicles with plastic intakes u wana make sure they are warm not dead cold or hot either. They are really easy to crack especially when they get to be older and be sure not to put too much pressure on them like leaning on it ect when working in the engine bay.
Excellent video by the way. Where does the other end of the PCV valve hose connect to? I was changing my PCV valve and the entire hose just came off. I'm not sure where it connects to.
Hi thanks for the video! Is there a specific torque for the PCV valve? Otherwise I assume you should just screw it back by leaving the same amount of visible thread as it was before.
You say the pcv needs only to be hand tightened but you used a socket set then a torque wrench. And it certainly was a lot tighter than hand tightening. A bit confusing.@@Leek_ee
carbon buildup is inevitable on direct injection engines and must be cleaned periodically. There is no avoiding it. Chances are your engine's intake valves are caked in carbon. Get it cleaned out and get an oil catch can installed to slow down future buildup considerably.
Thanks for the video, I saw that you drop the spark plug into the hole before screwing it, is it because its the best way to not screw up the bottom of the plug or is it because its faster ? Im a beginner
@@KolbPROD thanks I changed the plugs few months ago and everything went fine, I used a magnetic 17mm (or 16 i dont remember) and it worked great, avoid the ones with the little plastic piece that holds spark plug because they fall
@@daniellieu4901 There are two 12mm bolts in this area that I believe are supposed to carry some of the overhanging weight of the plenum. Without one or both of these fasteners, there is an increased risk of developing cracks in the plastic due to vibration and thermal cycling.
I believe that there is are coolant lines that flow through the TB that you don't want to disconnect. They would likely restrict how far you can move the plastic plenum.
I hate the fact that you have to remove the intake manifold for what should be a simple task.
And I thought the Germans over engineered sheesh
@@firewall8047 i dont necessarily think its overengineering. It might be opposite to this. You have to remove the manifold JUST to replace ONE plug. The other five are accessible. It's kind of underengineered...
@@foreigner2017a
@@foreigner2017視線も😊
its not necessary to remove the intake manifold. with the right tools its possible
Took couple hours to change but totally worth it,Thanks for the video. Cheers
Man did this in under 10 min while my mechanic was going to charge me 9 hours of labor to do this.
1h30 pour moi mais polisage entree admission alu 1h30 de +
@@lavazza.vinzenzo Did you clean the lower (aluminum) intake to remove carbon build-up?
Avez-vous nettoyé l’admission inférieure (en aluminium) pour éliminer l’accumulation de carbone ?
good video but dropping plugs in to the cylinders is not good you can damage the plug use a magnetic plug holder or a piece of vacume hose.
One tip you don’t ever need to replace the PCV valve unless it’s broken. They simply need the sludge making it stick cleaned out get some carb or brake cleaner and simply clean it and put the original back in. I’ve done this job and forgot to put a vacuum hose in the rear back in place and was a pain to get back on with the upper plenum back in place 🤦🏽♂️
It looks like the PCV valve is a $10 (or less) item, but the labour to get at it is next to zero when the plenum is out of the way. I think it is a good suggestion that I have not seen mentioned on any of the other sources on this topic. As you mention, it certainly is worthy of at least checking and/or cleaning (if not replacing) while one is doing the job.
Silver is one of the best colors in the is250/350. My 2010 350 is black sapphire pearl...ugly, doesn't show off the body lines and difficult to keep clean.
Literally my exact thoughts. I typically love black cars, but this one definitely doesn’t look its best in black. I’ve found Matador red, White, and this tan/sand ish color to be my favorite
Clay bar your car and give it carnuba wax (if diy) or ceramic coat (if you want it to be done properly.
I did those two and took me 8-10 hours total because paint contaminants was so bad, but so worth it because water, dirt, and other nasty stuff don’t stick that much on my car. And it it does, I can just remove it with my finger (rear dust breaks for example.) :)
@@ruthnoya8424 damn ceramic coating. Nice.
I didn’t bother to polish my car with any compound, I don’t know how thin the clear coat is already.
What I did for now since I now added wax to my car is just get a cheap $3 car wash just to remove the dust and grime. And leave the car wash. The water just slides off from the car and I like it. Car no longer is a dust magnet. xD
Just had to do plugs and valve cover gaskets on my expedition. Talk about a pain n the ass.
The struggle is real 😂😂
@@Leek_ee right especially with these 5.4l ford's. They known for breaking plugs off in the head. Also when working with vehicles with plastic intakes u wana make sure they are warm not dead cold or hot either. They are really easy to crack especially when they get to be older and be sure not to put too much pressure on them like leaning on it ect when working in the engine bay.
I enjoyed it!
Do you know the torque spec for PVC valve?
Forever grateful for this tutorial.
Youdaman!
thank you for the video.
Just want to know at 8:29, what is the sensor you showing?
Thank you in advance.
probably the pcv valve he talked about
awesome video thank you for sharing
No problem! I hope it helps
@@Leek_ee I drive a 2019 Lexus ES350 but I used to own a 2014 IS250
What are all of the tools you used?
Doing pcv on my 250 soon hopefully thanks for the vid!
Excellent video by the way. Where does the other end of the PCV valve hose connect to? I was changing my PCV valve and the entire hose just came off. I'm not sure where it connects to.
Behind the intake
Hi thanks for the video! Is there a specific torque for the PCV valve? Otherwise I assume you should just screw it back by leaving the same amount of visible thread as it was before.
You’ll need to hand tighten it only
You say the pcv needs only to be hand tightened but you used a socket set then a torque wrench. And it certainly was a lot tighter than hand tightening. A bit confusing.@@Leek_ee
I noticed your headlights look pretty clear. Are those the original headlights? If not where did you get them?
Yes they’re the oem headlights. I used a headlight restoring kit.
Very helpful thanks
I just bought a 2008 is250. Did you ever experience carbon buildup and had to clean it?
carbon buildup is inevitable on direct injection engines and must be cleaned periodically. There is no avoiding it. Chances are your engine's intake valves are caked in carbon. Get it cleaned out and get an oil catch can installed to slow down future buildup considerably.
Thanks for the video, I saw that you drop the spark plug into the hole before screwing it, is it because its the best way to not screw up the bottom of the plug or is it because its faster ? Im a beginner
It’s the best way to get in there tbh. Or you can use a magnet stick to drop it in.
@@Leek_ee thanks !
Be careful, the ceramic on the plug is very fragile and dropping it can damage the plug
@@KolbPROD thanks I changed the plugs few months ago and everything went fine, I used a magnetic 17mm (or 16 i dont remember) and it worked great, avoid the ones with the little plastic piece that holds spark plug because they fall
@@Roadman-VR awesome thanks for the advice
Did you have trouble removing the bolt near the firewall of the intake manifold side? Maybe could give the viewers some tips here.
Funny story, it didn’t have a bolt 😬😬
@@Leek_ee Im sure there's one... maybe you are missing that 1 bolt? Think its a size 10 bolt that is F hard to get out. It's near the PCV valve.
I used a mini wrench with a 12mm socket. I unscrewed it and somehow managed to drop the bolt behind the engine. Do you think that bolt was needed?
@@daniellieu4901 There are two 12mm bolts in this area that I believe are supposed to carry some of the overhanging weight of the plenum. Without one or both of these fasteners, there is an increased risk of developing cracks in the plastic due to vibration and thermal cycling.
Thinking of changing plugs in my 08 is250. Are these spark plugs compatible with 08 model?
I believe that all IS 250's (2.5 l V-6) up to 2015 use the same plug.
why you have to remove the throttle body from the intake manifold?
I believe that there is are coolant lines that flow through the TB that you don't want to disconnect. They would likely restrict how far you can move the plastic plenum.
What size socket did you use for the pcv valve?
19mm
Is it necessary to replace the intake gas rings?