Generally pour in cleaners and additives are useless snake oil. Seafoam can be useful on some older cars feeding it through the air intake to decarbonize - thought that can be a risky operation. Skip the snake oil.
#Seafoam or Lucas fuel system cleaner?
gloomy pine
river garnet
Generally pour in cleaners and additives are useless snake oil. Seafoam *can* b...
its for carbon cleaning, i have a lot of carbon on my valves and cylinder head intake ports, also trying to clean out any shit in my injectors
gloomy pine
Ok. Go with the seafoam. When you use it, let the engine suck it into the intake as slowly as you can, and then shut the engine off and let sit for 5-10 minutes. When you start it again, it’ll be tough to start but once it fires, rev it a bunch and you’ll get lots of smoke. I’ve done this a bunch - good luck! Remember, let it suck in slowly
river garnet
i perform work professionally... if im doing it, the additive has to go in the tank
vagrant steppe
If you're doing seafoam, get the kind with the straw nozzle that you put into your intake. It makes it way easier.
river garnet
If you're doing seafoam, get the kind with the straw nozzle that you put into yo...
This is a chevy express so space is limited, cant take the intake manifold off without performing extensive amounts of labor especially involving electrical connectors... does lucas fuel system cleaner work at all? I am really not trying to have my cats get clogged but want my fuel pump, feed line, rail, injectors, and any carbon on the intake valves to be cleaned... I dont care if it takes a little while
river garnet
If you're doing seafoam, get the kind with the straw nozzle that you put into yo...
also i agree, hyundai kia is trash
gloomy pine
Most in-tank products don’t work, or not by any amount that you’ll ever notice. But if that’s what you’re after, usually the suggestion is Techron or BG44 (they do a whole line of flush products but they do have a fuel additive)
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river garnet
Most in-tank products don’t work, or not by any amount that you’ll ever notice. ...
how is an in tank product not going to clean intake valves if the injector sprays right next to the intake valve? this is a port injected motor, not a di
gloomy pine
Key phrase “not by any amount that you’ll notice”
river garnet
but they are pretty powerful cleaning agents
gloomy pine
In fairness, to answer your specific question about Lucas vs Seafoam as an in-tank product, I’d lean towards Seafoam as it’s more concentrated
river garnet
does it have the potential to clog a cat
gloomy pine
Not that I have ever heard anecdotally or seen any data for
I suspect the clogged cat story comes from folks using it as we previously mentioned (sucking into the intake)
Because there is 100x as much buildup inside your intake manifold than on your valves or fuel rails, injectors, etc
river garnet
https://youtu.be/ozCsiK3Wi8o?si=oP0L9Adda-PfiK3Q
https://youtube.com/shorts/JiyRtfcVjE4?si=DUOycKFL8rgGngsS this is what im dealing with, sounds like a fucked injector and I have a slight lack of power sometimes, not really sure but def want to clean out my fuel feed line and rail if i am doing injectors
river garnet
Because there is 100x as much buildup inside your intake manifold than on your v...
oh ya ive seen my intake manifold, it aint that pretty but its not anywhere near the point where most cars are... my express has no egr so thats amazing
gloomy pine
Ok. So here’s what to do, let’s mitigate your risk - run the Lucas first.
If it doesn’t help your symptom, run the seafoam (I don’t believe it would clog your cat but I understand the concern)
If seafoam doesn’t help, you’re probably going to be taking apart the fuel system and getting things bench tested - but if you can find someone with a BG44 flush machine then that service may be the next step
river garnet
ok ill do that... did you happen to watch the video and if so does it sound like injectors or more of a mechanical sounnd to you?
fuel trim is -2 on bank 1 and -4 on bank 2 for long term trim, I think some of them are leaking and others are clogged... 110k miles on it and I always run my tank to almost empty, and there is no inline filter just the fuel pump strainer
gloomy pine
Yeah. That’s possible - and there are services who can test/refresh your injectors, in lieu of replacing. Do that + fresh set of O-rings may ultimately be where you land
Good luck mate!
river garnet
It hasnt got louder and its been doing it for a year... and no, i usually wouldnt let anything keep running after I heard a noise that sounded bad but I was told by multiple shops it was just how the engine sounded... you cant hear it unless you are in a drivethru, next to the wheel well, or under the car and this doesnt have afm or i would suspect a lifter issue
thanks for the help, ill keep you posted
wraith dirge
I’ve used gumout and had decent luck. It’s worth a shot for less than 10 bucks