not to bring back a rather long and beaten up thread, but i have a question that the first 8 pages didnt answer...

i wanna do the seafoam treatment, cuz im gonna be driving 1400 miles in the next 10 days. i leave wednesday night, and like i said in another thread im also doing a tune up tomorrow. should i do the seafoam treatment, and then replace the plugs, or the other way around. i was reading and it said in a few weeks it will foul plugs or clog a cat, well im replacing both. so do i do it before or after i replace the parts??

 

and i also forgot, when feeding it thru the pcv hose, do i pull the hose off the pcv valve itself and feed it thru the hose, or do i pull the hose off the opposite end and feed it thru the hose toward the actual pcv valve?

 

do it before i found the brakeboster to be better

 

got a pic of the brakebooster, like i said in the other thread totally new to trucks, import 4 cylinders are so basic i could do that with my eyes closed, this is a whole new world to me..if i use the pcv which way do i feed it in, toward the valve itself or opposite of that?

 

ill let someone chime in on the pic i didint have much time with my 3.0L

 

thanks for all the help man, i appreciatte it, oh and i looked at the pics of your accident...that really sucks that truck looked nice...i know how it is tho, i had a 2004 civic si, and some asshole cut across the road, i swerved to miss him and played ping pong with the guard rails, all in all, a totalled civ. i feel your pain

 

Yes... Seafoam first, then swap the plugs & oil.

 

is doing changing the oil totally necessary, i just did it last week. and i dont plan on adding any seafoam to the crankcase, only to the intake and gas tank

 

Some people insist that it's mandatory, I don't think so. I added that in 'cause you mentioned that you were going to do a tune-up, which to me would include a fluids change.

The thought behind the oil change is that there _is_ blow-by in the cylinder to the crankcase; therefore, as SeaFoam does it's thing "all that crud" has to go somewhere and in theory it will show up in your crankcase. My feelings there are that not enough will get into the crankcase to create an issue.

 

well thats what im going with, i only have 300 miles since the oil was changed, and to honest with all the work i been doing to it lately, its the last thing i wanna do again.

the seafoam worked great, cept i did my K&N FIPK right after i put the seafoam in, so it sat for a while, maybe two or three hours, damn that thing was a bitch to put in. so when i went to go start it up, it was really rough, like rough enuff to the point where it shut off three or four times, then it started up, puffed tons of dense white smoke for about 5 minutes, then light white for 15, then i took it out and drove it for about 10 min, and it was ready to go... drove it to school and notice a nice little kick that wasnt there before, and i know that aint from the intake.

all in all i would do it again, maybe in 6 months or so, but i wanna do the crank, brake booster, and gas next time, two cans total. see how that works out.

i give it two thumbs up, and ill know more after i drive 700 miles tomorrow lol

 

After pulling my intake manifold and plenum, I'm pretty convinced that seafoam really doesnt do much of anything. Might clean up a little light carbon buildup, but the caked on stuff that was on my intake took a screwdriver to scrap off and a wire brush to clean the rest.

 

I agree that it's not a wirebrush-in-a-bottle (at least not in a single run-through), but it certainly does clean light buildup. There are pics around in one of the Seafoam threads that show the before & after.

Avoiding the major build-up in the first place is the only way to get out of scrubbing later.

 

I can't believe I read the whole thing.

I know some of you guys have posted problems with mileage after the SF treatment. Any change after driving around for a while or doing more treatments??

I have a 90 CRX that's getting about 20mpg less than it should (30 instead of 50). I don't want to make things worse in that regard.

 

Umm... you're talking about a 40% drop in mileage. You need to look at more than just pouring SeaFoam into the intake.

I have a similar mileage drop on my 4Runner - I burned a valve and am basically blowing raw fuel right into the exhaust.

 

oh yeah, the car's got serious problems, but i figured i could recover SOME of the mileage the easy way

and it idles at like 1800 rpm tried to adjust the idle to no avail. i'm still in the beginning stages of dealing with it

 

If you need some help doing it. I've done it on a bazillion cars, just let me know.

 

The first time I did it to the plenum I took and manually cleaned the inside of hte plenum because there was just so much dirt. I've found through doing the seafoam 3 or 4 times that if you keep doing it the better the results are, along with other maintenence.

 

hey, i just picked up 2 cans of seafoam and am gonna do the treatment today along with a good clean up of my engine bay and rest of the truck...

i really want to be sure i get this in the right hose, im aiming for the PCV line, mine is kinda dry rotted so ill be replacing that while im at it, but anyways all the other pics i could find are now little red X's so can someone confirm that this is the right line?





thanks everyone, and just to make sure i have the instructions right, i pour about 1/3rd a can in VERY slowly while its running, and then after its done smoking pour another 1/3rd can in slowly and have a friend turn the truck off after it all goes in?

 

Yeup... that's the one. And pour it into the end that you show disconnected.


There are a couple of ways to do it, and that way is fine. The key is to let it sit for _a while_ (a couple of hours or even overnight) after turning it off.

 

okay.... so just for everyone's future reference, this is UBER SCARY to do the first time...

pretty much right after i pulled the PCV i didnt cover it with my thumb so my motor stalled, after that happened i knew i couldnt let it suck up too much air so i kept my measuring cup handing to pour it into the hose immediatly, and just remember that a steady flow is necessary otherwise you will stall your motor out!

lots of smoke came out after i let it sit for like 5 minutes, ive just let another batch sit for about an hour and am gonna go drive around... then im gonna put one last batch in and let it sit over night, after the first time i noticed it immediately idled better and it didnt tick as loudly. i cant wait to see how much crap comes out tomorrow morning, thanks for the help midiwall!