6MTUA5

iTrader: (2)

Probably going to do this tomorrow to my 99 TLP with 135K miles on it. Just got an oil change so I will go ahead and buy 3 cans; 1 for vac line, 1 for gas tank, and save the other for the crank case when it comes time for that oil change. I just changed out my plugs for some new NGK Iridium. From info in this post as well as this one, is it safe to say that this will not harm my new plugs?

01tl4tl

New plugs will suffer NO ill effects IF you do the drive it hard after the seafoam to clean out the carbon.

6MTUA5

iTrader: (2)

will do

i will post some vids afterwards.. car is sitting right now, then i'll take it for that "spirited" drive...


EDIT: i think i'll take that drive to the acura dealership to pick up my 02-03 cupholder insert that should be in today

01tl4tl

If its the first time seafoaming, do it again just before next oil change
That will get the last of the gunk out
And help keep everything clean by adding some to the gas now and then.

Trackruner228

iTrader: (1)

I have a question that didnt seem to be covered on here or at least not that i saw. Anyway will putting it in your gas tank have as good as effect as having your engine inhale it all.

Eisenhulk

It was covered....and no it won't have the same effect as using the vac. line.

6MTUA5

iTrader: (2)

kman03tl

hahahah thats awesome i wanna do mine real bad

HockyStar89

i suggest getting on the highway and opening it up rather then sitting there and revving it, drive it for a good half hour after ur done

01tl4tl

You MUST do a drive it till its good and hot freeway blast and use vtec several times to get it all hot and cleaned out properly

6MTUA5

iTrader: (2)

LOL, I did I was just getting a shot of all the smoke when I first started it.

At the end of the video, you can hear my car door shut. It is me getting out to grab my camera because I didn't want to leave it running in my front yard. I took it on I-10 for a couple exits, about 6 miles in 3rd gear going 70 at 4000 rpm like you said (I have the 4-spd). Then I got off and went back through town hitting vtec a couple times. No more smoke.

CJITTY

^^^
Did you notice any improvements? I may do mine this weekend!

Trackruner228

iTrader: (1)

oh sorry I couldnt find it but that stinks because I really would like to just pour it in the tank since my oil was changed less then 2 months ago. I guess i will just wait till my next oil change to do it the right way.

6MTUA5

iTrader: (2)

yea smoother idle and does seem to shift better, but just because the engine is running smoother. i have 135K miles on it.

it is really easy to find the vac line. just look for the picture on the first page. you just follow the rubber tube from the back of the motor (in the middle near the top) along the firewall and through 2 clips then it plugs into the module shown.

unplug it and remove it from the clips to get some slack to work with. when you turn on your motor, it starts to suck, so just dip it in the bottle, hitting the throttle with your other hand to keep the car from stalling.

01tl4tl

trackrunner

Simply do the vac line and gas tank methods now and do the crankcase cleaning at next oil change.
Doing the intake twice 3k apart the first time is very good idea

Trackruner228

iTrader: (1)

Actually I knew had to do that but the thing was I i misread and thought if you did it that way you needed an oil change as well just thinking on my part thanks for correcting me and thank you 01tl4tl for your help as well. Tomorrow im feeling a trip to my local autozone. Right now im in make my car nicer mode (I plan on doing the B pillars too soon because they are GROSS.) Once again thanks for everyones help.

MPX

Finally seafoamed the car.
Smoother idle for sure, dunno about the shifting lol

+1 believer to seafoam

6MTUA5

iTrader: (2)

I did my brother's 98 Prelude earlier tonight. 1/2 can through the vac line & other 1/2 in the gas tank. Smoked like hell but took a spirited drive keeping the RPMs high to burn off the smoke.

The check engine light came on and hasn't gone off yet. Also, a little hesitation at first. Could the plugs be gunked up? I know the Seafoam is not supposed to mess them up, and I drove it for a while, burning off all the smoke, so I wouldn't think the plugs were messed up.

Only way to make sure is to check them out, I guess. Like I said, it's my brother's car so I don't know the last time they were changed. Any recommendations on what kind of plugs to use for the Prelude (98 auto non-SH)??

01tl4tl

Its common for the cel to stay on 1 or 2 days after much needed seafoam
the stuff in gas tank is just starting to do a further cleaning
Run another can thru for him too
If you did the hot burn for 20 minutes drive should be fine unless really shot plugs

Kevinl83

im another believer of seafoam too.. but after doing it my transmission started acting up..

subtledreamer

Just want to add that i've seafoamed my TL about a month ago and can definitely feel the difference in the overall smoothness of the car. I believe my MPG has gone up by 1 or 2 also~!

The white smoke immediately after was quite fun when i was on the road confusing/scaring drivers around me haha Most people switched to the lane next to me and stared at me as if i'm crazy.

I know similar photos have been posted already, but to completely verify for those who are still unsure about utilizing it on the throttle body:

JD TL-S

iTrader: (1)

Seafoam was used by farmers in the old days. I have been using it for 10 years since a friend told me about it. I use it in my Snowmobile gas all the time. NEVER had a tune-up or car rebuild. Starts every year like its new. 1987 Polaris Liquid 400.

6MTUA5

iTrader: (2)

thanks 01tl, i thought i remember reading that somewhere about the light, but wasn't sure. i'll give it a few days and see what happens.

i did about a 15 minute burn, but didnt get a chance to take it on the interstate, like i did with my tl. only took it on some back roads but kept the rpms high (it has a ss shifter as well, so i kept it in 2nd at 4-5K rpms) and hit vtech a few times.

hopefully all is well, but some new plugs bever hurt if i did gunked them up too bad. ngk iridiums recommended for the honda as well? i did a search for prelude plugs on ebay and those ngk iridiums and platinums showed up.

i'm trying to fix up the brother's prelude a little for him while he is gone with the marines. just in training now, but after he gets back in july supposed to leave for a few years. he never really take care of his car and doesn't know much about them so i am trying to fix a few things on it for him.

Jcanscore50

Seafoam is the real deal if you haven't done it yet. The TL responds to it very well and it definatly helps gas mileage a little bit. Make sure you do all three steps and don't skip the vaccum line. It may seem intimidating if you are a newbie but just take a few minutes and look at the pictures posted here and read the instructions and you will understand what to do.

dnd2984

iTrader: (6)

I just did it again to my TL today and will do it again in a couple of days before changing out the sparkplugs.

6MTUA5

iTrader: (2)

Did the Prelude again today. Bought 2 cans; 3/4 of one in vac line, other 1/4 in tank (drove and burned all the smoke off), and 1 full bottle in crank case 5 min before oil change. Feels better, smoother idle.

I think I am gonna go ahead and get new plugs too. Iridiums or Platinum for the 98 Prelude? I think I'm just gonna get NGK Iridiums and new lines..... Maybe an intake too.

You don't need to change your plugs after Seafoam as long as you take a spirited drive in SS mode, letting the RPMs go high so the engine can get hot and burn all the stuff off.
But you were probably just talking about how you needed new plugs anyway.

dnd2984

iTrader: (6)

I went back to advance auto and was talking ot the guy and he said save the money and get the iridiums, but so confused

Also I am gonna be doing 1 can of sea foam in the gas tank and half in the crank and half in the vac line

01tl4tl

You dont get as much actual cleaning in the crankcase- its just cleaning the oil passages essentially- so 1/3 can before oil change is good

The intake vac line and the gas tank method get the really important parts best
You can use seafoam in gas at 1oz per gallon, and thats just the normal strength listed.
Can use more if you want- full can in 1/4 tank of gas is good too!

levon1830

Thanks for this post. It answers a question that I was going to ask of the entire AZ community: How many of you have been using SeaFoam for a long time, like say at least 5 years, and/or at least 30,000 miles? If so, how many of you long-time users still attest to the usefulness of SeaFoam?

probmxstyle

i am actually waiting for the seafoam to cure right now. After I emptied the bottle I went to turn off the motor. But I took my key out and the motor was still running....seems very weird. It wasent running smooth, but it was still running. Almost as it was running on the seafoam. Anyone else have this issue? I did get it to turn off btw.

6MTUA5

iTrader: (2)

^^^ I've never heard of that happening before. How long did the motor stay running after you turned the key off? Let us know how it went.

01tl4tl

Not unheard of. Mine ran really bad clattering and such on restart after recent 2nd treatment, drove very gently for a few blocks until it cleared the SOLVENT from the system.
Yes Seafoam is combustable but not same as pure gas to the engine.

Make sure not to let it sit to long, not more than 15 minutes- everything stays warm is better, and then the mandatory hi rpm approx 4000 or more with vterc burst to run it hot- burns out the carbon thats loose now and keeps the spark plugs clean. Make sure to run a can thru the gas tank- as little as 1/4 tank gas to 1 can of Seafoam for super cleaning of the fuel injection sysytem

Note: If you already have over 70k miles on your spark plugs- it will run much better with a new set og NGKs after Seafoam treatment. It doesnt hurt your plugs, just if you have 100k and dont do the burn off- you may get problems.

probmxstyle

It never died, It was running for a good 5-10 seconds then I put the key back into ign mode and it started running regularly. Took the key out again and it stayed running again. The third time I took the key out it finally shut down.

01tl4tl

Its called pre-ignition or run-on
Happens when plugs are loaded up
Maybe next time try adding the seafoam a little slower
dipping hose in can and remove, dip and remove, while holding idle up slightly to keep engine running. When smoke appears from tailpipes, turn car off, sometimes it dies on its own, sometimes you had a really dirty engine and it keeps running!

probmxstyle

Yeah kinda freaked me out a little untill I got it turned off. But she runs nice a smooth now. Plugs are next along with oil.

2K3_TLs

i had that happen to me when i seafoamed my TL. ran for about 3-5 seconds after i turned the ignition off but it was very rough. at first i was like WTF, but my buddy (MurkyRiversTL) said it happens since seafoam is very combustible.

Although the 'spirited drive' afterwards was interesting in its own way. The TL had a hard time going through 1st gear, even with the accelerator pegged, but after it spewed the first street clogging blast of smoke... it went through the RPMs like a fat kid goes through cake.

That and the wind was in our favor and blew pretty much ALL the smoke into one of Murkys neighbors garage. Pretty funny if you ask me.


Seafoam is teh shit...

tupacboy1

hi guys... did a search on seafoam and got this thread.. my dad owns a 99 avalon... is it safe to use on it? (sorry i'm not very good with cars) also, please advise which line is the brake boast vaccum line... i think its the top hose on the first picture...











thanks for your help in advance.

01tl4tl

Seafoam works on every engine type.
Test that hose you think will work by seeing if it sucks against your finger at engine running- idle speed. If so- you have a vac line in hand.
Make sure to add 1 can to 1/4 tank of gas to super clean the injectors from inside

Remember= engine warm- add seafoam slowly until smoke begins to come out exhaust- right about when the can is empty, then stop engine and wait 5 minutes, restart and take on hi rpm 15 minute drive to burn out the cleaner and carbon residue
HAve a smokin good time!!!

NC-Grayson

sorry for the old bump, but i went out in the garage to do the seafoam today, unhooked the line on the bottom of the sensor, and went to suck up the can, but the hose had no suction?

only the sensor's male end has suction....do i need to give the car gas while doing this? i might need an extra hand.

6MTUA5

iTrader: (2)

as long as the car is on, you should have suction but you can hit the throttle cable a little to keep it from stalling. are you sure you have the right hose?