How To Seafoam Your Car

Post by **Bruno240** » Fri Jun 10, 2005 12:38 pm

I purchased three cans of seafoam at Autozone for $5.99 a piece. I only used one and a half today. The great thing about seafoam is that it can be used in 3 different ways to clean different systems.1. Gas Tank to clean fuel injectors....2. Crankcase (Oil) cleans lifters, PVC systems, ect...3. Injector or Carburetor cleans valves, and carbon build up

So there are three ways to put it into your car.1. Just add it to your gas tank.2. Mix it in with your oil.3. Add into your direct manifold vacuum line to feed all the cylinders. -I go into detail below on this step.

To go about using seafoam in your manifold vaccume line you need to think about which one you are going to use. I decided to use my PCV valve, you can also use your brake booster line as well.

(this is done on a 1992 Mazda Miata)

Step 1- Get the car's engine hot. So go up to autozone and grab yourself a bottle of seafoam.

Step 2-locate PCV valve.

Step 3- Now keep the car on and slowly pour seafoam into the valve.The car is going to struggle. You want to put about 1/3 of the bottle in here. My engine did not stall so after the 1/3 i turned it off. Let the car sit for like 5mins or so.

step 4- Start up the engine and start reving it. You will see this behind your car...

Congrats you just seafoamed your car.

This is my first write up so if there is anything you want to add go for it.

Post by **gniknave** » Fri Jun 10, 2005 12:40 pm

I love you.

Post by **Bruno240** » Fri Jun 10, 2005 12:41 pm

well there has been so much talk about it latly and it even had me hooked so we needed a thread that had a complete way to do it and not just tid bits here and there

Post by **USDM240** » Fri Jun 10, 2005 12:46 pm

seafoam? ive never seen that at the parts store...

Post by **nab911** » Fri Jun 10, 2005 12:48 pm

Napa has it. Ive used it before and it does wonders.

Post by **cnickk** » Fri Jun 10, 2005 12:51 pm

cant you mess your car up with that stuff?. and what does it do for you???? might buy some tonight

Post by **USDM240** » Fri Jun 10, 2005 12:53 pm

nab911 wrote:Napa has it. Ive used it before and it does wonders.

well, that makes sense now...i never use NAPA.

Post by **Bruno240** » Fri Jun 10, 2005 12:56 pm

NAPA and autozone carry it. At autozone its next to all the fluids and cleaners.

Seafoam cleans out everything. It cleans out the carbon deposits and gives your car a better idle

Post by **PoorManQ45** » Fri Jun 10, 2005 1:10 pm

That's all fine and dandy, but this is how you really sea foam your car

Post by **gniknave** » Fri Jun 10, 2005 1:26 pm

Leave it to PMQ to interrupt an informative thread... LIFE RUINER!!!!

Post by **PoorManQ45** » Fri Jun 10, 2005 1:35 pm

I'm still a little skeptical about seafoam. Have there been any long term studies on what seafoam does to your engine? Not that I've seen. Just think about it. THat stuff is MORE corrosive then gas! It is able to remove the build up from your engine that gas normally doesn't. Now, I bet you've all used gas to clean the grease/crap off your hands at one time in your life. That's pretty strong just by itself.

I'd like to see what it does to the rings, valve seals, O2 sensor, etc... Probably tears that crap up!

Post by **gabossie** » Fri Jun 10, 2005 1:35 pm

Nice job. When I did it I used my brake booster line and rather than trying to pour it in I just poured the amount I wanted to use in a cup and then let the vacuum suck it up. Nice write up though.

Post by **crzycav86** » Fri Jun 10, 2005 4:31 pm

Seafoam helped me pass emissions last year. NOx was too high, so I retarded timing a bit and ran a treatment. Miraculously, HC and CO went down too.

If you use seafoam once a year at emissions time, I doubt you'll do much damage as far as corrosion is concerned.

Post by **StrangeLove** » Fri Jun 10, 2005 7:45 pm

PMQ, it might hurt the car if you left it in the system undiluted by everything in your engine for long periods of time... but you don't.

Post by **Dattebayo** » Fri Jun 10, 2005 7:57 pm

Yeah, as you said, gasoline is pretty corrosive nowadays and it runs through your car all the time. You make me confused. Like, are you an electrician or a chemist? Somebody 'splain it to me...

Website · Post by **Bronze MFP** » Sat Jun 11, 2005 11:27 am

hahah, i love how they don't warn you at all about the amount of smoke that billows out of your exhaust after treating the engine... all they say is to work in a well ventilated area because "extreme fuming may occur"My nextdoor neighbors came out and wondered if I had f'ed my engine when the whole culdesac was smoked out.

Post by **Kansei240sx** » Sat Jun 11, 2005 1:14 pm

I ran some in my 91 240 and it worked great.

While Off and warm i put 1 cup : crank casehalf a can : gas tankWhile running and warm1 cup : Brake booster line going into the intake plenum. and then killed the engine when i got it all in.

Let the engine sit for 5 or 10 minutes and then let a rip.

Once i started it i had to keep some gas on or it would die and black smoke went everywhere. I drove the **** out of it up and down the street a few times.

I continued to drive it pretty hard for the next week. Then after i was pretty sure i had gotten all the carbon build-up out of there i did an oil change at 500 miles.

It burns oil as of now, but it did that before anyways, i guess it just cleaned out some of the gunk build up in seals here and there..... but i dont have any other problems than that....

So using this stuff is a good idea.

Post by **biglipzit** » Tue Jun 14, 2005 8:46 am

it thins out ur oil alot and you are not to go driving at all once it is in the crank case... what were you thinking??? lol hope you didnt mess up anything.

Post by **Atomic-S14** » Tue Jun 21, 2005 8:08 pm

first, if i were to put this seafoam stuff in my gas tank, how much gas should i have in the gas tank? should it be full tank or 1/4 of tank? second, do you need an oil change right after you add the seafoam to your crank case? what do you do after you rev up your engine and added seafoam to your oil?

I just got the seafoam from GI JOE's and it was only 5.99

Post by **AmoebAssassin** » Tue Jun 21, 2005 8:14 pm

I have what is very likely to be a clogged IACV. Will seafoaming the car clean it up, or do i have to rip the thing off (PITA!) and clean it?

Post by **PoorManQ45** » Wed Jun 22, 2005 4:38 am

AmoebAssassin wrote:I have what is very likely to be a clogged IACV. Will seafoaming the car clean it up, or do i have to rip the thing off (PITA!) and clean it?

Nope, IACV takes intake air. Doesn't take air from the intake. The only way you could clean that without physically removing it is with a fogger, but those don't work too well anyways.

Just bite the bullet and remove it

Post by **AmoebAssassin** » Wed Jun 22, 2005 4:53 pm

PoorManQ45 wrote:Nope, IACV takes intake air. Doesn't take air from the intake. The only way you could clean that without physically removing it is with a fogger, but those don't work too well anyways.

Just bite the bullet and remove it

Sigh, i was afraid of that. Looks like thats how its going to be then, i guess. *grabs set of tools and lots of bandaids*

Post by **PoorManQ45** » Wed Jun 22, 2005 4:57 pm

What kind of car? Use the search feature to find out the quickest way to remove it.

Post by **AmoebAssassin** » Wed Jun 22, 2005 5:11 pm

PoorManQ45 wrote:What kind of car? Use the search feature to find out the quickest way to remove it.

240sx, yeah i searched but removing the manifold is almost as time consuming as taking the IACV off without doing so.

Post by **Badfish** » Wed Jun 22, 2005 6:22 pm

I've been dying to use Seafoam on my car. I've still got 3 cans I bought last summer. Problem is that I don't want to foul my spark plugs that only have 1,000 miles on them. (Just finished SR swap 1 month ago, don't want to replace the NGK's just yet.)

Oh well at least I can run it in the gas tank and oil for now.

Post by **Atomic-S14** » Fri Jun 24, 2005 9:49 am

how much gas should i have in the gas tank when adding the 1/3 of the seafoam to it?

Post by **PoorManQ45** » Fri Jun 24, 2005 10:02 am

Add it right before you fill up

Post by **nab911** » Fri Jun 24, 2005 10:09 am

PoorManQ45 wrote:Nope, IACV takes intake air. Doesn't take air from the intake.

PMQ... this is quite possibly the stupidest thing you have ever said But then again... you have said some really ****ed up stuff....

Post by **PoorManQ45** » Fri Jun 24, 2005 10:31 am

Oops, I meant it doesn't take air from the plenum.

Good catch

Post by **nab911** » Fri Jun 24, 2005 10:48 am

I would also recommend putting some in a spray bottle and blowing it in your airbox/intake tube (before the maf). Not much as to ruin the maf but to clean the sensor and TB.

How To Seafoam Your Car

How To Seafoam Your Car

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