Yea it's great when they skip the part that can potentially end in death. Probably the most overlooked thing in the industry especially with diesels. Without releasing the pressure in your fuel lines you can be blasted by it. There was an AA guy over here that died pulling a fuel line off. I cant remember if it was a small nut that blew off and hit him or if it was the pressure of the fuel hitting his arm and getting into his blood stream. Either way it was a freak accident that could have been prevented if he went by the books.
@@MasksOfficial multi port fuel injection which is what he is working on only runs at 45psi . Less than the water pressure from the street (55psi) . Direct injection is a different story . There's a Schrader valve on most fuel rails to release the fuel pressure .
This guy is the human embodiment of WebMD. “If your high mileage car is running a little low these days, go straight for the fuel injectors! Air filter? Nahh, Mass Airflow Sensor? Nehh, tire rotation? Pfttt, nope.” I would argue fuel injectors, depending on the car can be very time consuming, and pricey, and wouldn’t be considered a quick fix. I appreciate the sentiment, but the delivery could’ve been different.
Especially pricey on diesel cars, my dad’s mondeo/fusion stopped starting and the reason was all 4 injectors have died - rebuild kits for 100$ a piece and new injectors for 300$ a piece, the car was a rust bucket at that point so it was pointless spending that much money, thoe, I feel like if I soaked the injectors in strong engine cleaning chemicals/solvent overnight it could’ve worked. Yes I’m aware about the whole “you can’t do that the gaps and nozzle diameters are now wrong and you need to code in the injectors after taking them off” thing, but I’m saying it could work in theory.
You know this dude got a video out there somewhere about quick fixing Piston rings or some shit. "Just pull the block and unscrew the Piston Bolts easy As"
I disassembled everything all the way down to the fuel rails on my car so many times while diagnosing a misfire that I can now do it in about 30 minutes!
Was the misfire even caused by the injection in the first place? When something like that happened to me i had to chase the problem all around the car.
@@days3348Mine was a burned #4 exhaust valve. Shouldn’t have tweaked that supercharger pulley down to the minimum. Injectors were too lean in the top end.
If this guy helps you work on your car, you’re never going to be doing much more than FOB. Just take it to a shop and thank me later. Or don’t be lazy, and watch actual RU-vid video about mechanics.
An injector is not serviced until the pindal cap is removed and the injector is flow tested and checked for leaks then cleaned so the wax is removed from around the needle then glowed again to check they are all the same and flow has improved and the spray pattern is perfect then fit all the seals and filter and cap and then refit.
I want to do this to my car right now do I absolutely need to test n flow or all tht u mentioned or can I just take off a few bolts take tht thing apart clean the filter in some water slap it all back together n send it and get some noticeable gains or imma just fuck it up my way I have to do it your way?
100% all questions no need to answer if u don't want to im just trying to make my car faster at any means nessacary without spending $ because tht I don't have but I got tools and the absolute will to learn and try
@@buildtime78years9 faster? You will barely notice a difference if any, unless a fuel injector is clogged for some reason and not giving enough gas to cylinder(which is extremly bad for engine running very lean for that cylinder) or completly broken then doing this has no benefit except preventive maintenance.
U can buy a fuel injector tester to make sure they are working well. Just need to go to a junkyard and get a few injector harnesses to wire to the tester. Get a bunch for different vehicles. Never know when u may need it.
If the injectors for your car aren’t too expensive, I’d recommend just replacing them. In my case they are $230 each OEM, so this makes some sense to save money. 👍
Seriously, for those Mitsubishi legendary engine...$230 for a brand new injector (total $920) is astonishingly cheap. No need to save couple of bucks for the important part of an engine.
@@dhanarputra555 Seriously a fool and his money are easily parted. The man just showed you how to do something for yourself. Take that knowledge and use it. Anyone can be a parts changer it takes knowledge and skill to be a mechanic
The part thats missing it "pull fuel pump fuse, attempt to start car acouple times, then use a rag to remove the fuel rail and the fuel injectors. Still will be alot of fuel!"
@@BespokeCarpentry oh but they always clog. I don’t think you realize that every gas tank under a gas station is filled to the brim with rust. Same with gas trucks. Rusty as fuuuccck. Why do you think we need gas filters
Всё правильно. Мазать надо. Только вот микрофильтра в форсунки у нас в продаже я не видел. У нас фильтра вместе с форсунками в ультразвуке купаются- традиция такая.
Oooh I remember lubricating the ring in engine oil caused a bit of controversy on Tik Tok - did you end up finding out whether it's right or not? Love you vids btw keep it up
I have used atf, engine oil,seafoam,silicone, assembly lube, Molly grease. Guess what, they all slid in without pinching the ring, no leaks and some of them have been years. Now if you put it in dry it's likely to damage the seal. Tl:Dr always lube up before inserting.
Rebuild kit may be like $20 bucks for all 8 fuel injectors, each fuel injector around $50…. $75 bucks each and cheaper or expensive, ( aftermarket ) some people like to keep the factory ones
Bit of a side note to add here, that's more of a freshen up injector. As this does not replace any of the electronics inside or the nozzle. Consider it preventative maintenance on an injector just don't assume it will fix clogged/ leaky or faulty injectors. Anyway still a good video! 👍
Seeing this comment section makes me appreciate my 3800. Fuel rail sits right on top, pop off the 10mm bolts and boom, it's out. First time took half an hour just cause I was memorizing the process, now I can change all 6 in half that. But I pray for you guys with direct injected engines.
He said if your car is high mileage. this runs but has no issues so rebuilding it like this will definitely get it to run smooth. There is also other things like spark plugs yes but that's something that should be changed after recommend mileage
If life has thought me something it's this: You can't rebuild injectors in a manner where it makes any sort of sense time investment wise. If injector cleaner additive can't clean them in a tank's worth of fuel, you tearing them apart also won't. It's best to just run some injector cleaner every few tanks and keep on top of maintenance. I've done it.. it worked beautifuly
THAT’S NOT REBUILDING, THAT’S SERVICING. Rebuilding injectors would require you to disassemble them COMPLETELY to replace internal rubber o-rings and solenoids, but that’s not possible because injector bodies are either crimped metal or moulded plastic.
I’d recommend using a brass hammer or a rubber mallet. You take a chance of damaging the injectors when you use a steel hammer. They can be expensive. I wouldn’t want to take that chance.
You can do anything with the right tools, hell there's actually tools used for specifically cleaning/testing sparkplugs with electrodes within spec that are just gummed up and or fouled. Just pop em in, push a button until the plug rotates 360°, push another button which blasts it with air, then rinse it with some solvent and it's good to go in about a minute and a half.
Now take a macro photo with the phone to see the injection holes have corrosion and are not perfect anymore. If possible and available in the market, replace the injector Lifesaver tip: remove the injectors with the engine warm. It will soft the rubbers and avoid them falling inside the manifold.
Fuel injectors rarely fail, let alone get plugged up. If the car sat for a significant amount of time(5, 6, 10 years), then yes, the injectors MIGHT be gummed up, with old fuel.
Old style diesel injectors can also be rebuilt fairly easily by an average mechanic with basic tools. Really just need new tips, seals, couple other simple parts replaced
