How to Seafoam Your Mustang

BlackedOut04GT · March 18th, 2009, 09:39 AM

So you have decided to Seafoam your 99-04 V8 mustang to clean out all the carbon in the motor, but your not sure what to do? Don't worry about, I got your back.

The first thing you are going to do is drive to your local auto store and pick up a can of Seafoam.

Next you would you car to run for about 5-10mins to get it up to temp, (if you just got back from the auto store you should be all set, but check the temp to be sure). You want the car to be at temp so that when the Seafoam goes in it will better break up any carbon that's in the motor.

Pop the hood and find the Vacuum line.

Now that you know where the vacuum line is, you should pop it off and turn the elbow up.

Find or make a funnel that will fit into the vacuum elbow.

Now you are ready to add the Seafoam to your car!

*IMPORTANT* If you plan to do this on your own, listen up. Before you unplug the vacuum line you will want the car to be running. Be ready to use your thumb to cover the vacuum line to keep the motor running. Have the funnel and Seafoam ready to go.
(If you got a friend handy, have them sit in the car to start it up. This way you can have the vacuum line off and plugged for the start up.)

Have the Seafoam can opened and the funnel ready. You are going to use your thumb inside the funnel to control the flow of Seafoam.

*DO NOT USE GLOVES* If you use a glove you run the risk of the rubber/dirt coming off your thumb and getting sucked into the motor. That = BAD.

With the motor running, the funnel and Seafoam ready, start to pour 1/3 of the can into the vacuum line SLOWLY and without having the motor stall.

After you pour in 1/3 of the can into the motor, shut the car off and hook the vacuum line back up.

Let the car sit for about 10mins and then for the fun part.
*You might want to video tape this*
Start the car and let it run for a while in a well ventilated area (AKA outside). Give it some gas. The more smoke you have coming out of the tail, the more carbon you had in the motor.

YouTube - 2004 Mustan GT Seafoamed

Hope this helps you out with Seafoaming the motor of your car.
Please note that this is just for how to add Seafoam to the vacuum line only. Seafoam can also be added to the gas and oil of your car, but that's the easy thing to do.

BlackedOut04GT · March 19th, 2009, 01:20 AM

Forgot to say this. Pics are for a 2004 Mustang GT, but you get the idea.

97GT4.6 · March 19th, 2009, 02:22 AM

Does this stuff actually work? Is the smoke coming from the carbon, or is it the seafoam that's smoking?

I'm considering it, and i guess it probably wont hurt anything.

AMmuslGT · March 19th, 2009, 02:38 AM

its probably the sea foam. ive never heard of this before lol

BlackedOut04GT · March 19th, 2009, 04:04 AM

It's a bit of both. The Seafoam it self will make smoke come out the tail pipe, but there is also carbon in the smoke as well. If you watch the video I put up you will see white smoke first (mostly the Seafoam) and then it gets a little darker (thats the carbon). It does do a good job of cleaning out carbon from the motor.

=BlackDog= · September 24th, 2010, 07:59 PM

Thanks for the info! Did it today and it is idling smoother

Everett · November 15th, 2010, 07:27 PM

ditto....smoothed out my idle....now i amdoing it in all my vehicles....bought a gallon of the stuff

bottled2v · November 15th, 2010, 10:21 PM

at work when we seafoam a car we just pull a vac line and stick it into the can of seafoam. it sucks it up into the car and you just pull it out every once in a while and see how much you've used. much easier than pooring it into the vac lines.

Rich J · November 15th, 2010, 10:24 PM

Originally Posted by bottled2v

at work when we seafoam a car we just pull a vac line and stick it into the can of seafoam. it sucks it up into the car and you just pull it out every once in a while and see how much you've used. much easier than pooring it into the vac lines.

Ik this is an old thread, but its already been brought back from the dead so I am posting this.

How do you just leave the vac line in the can of seafoam? Doesn't the car stall?

BlackedOut04GT · November 15th, 2010, 10:28 PM

Originally Posted by demon_54

Ik this is an old thread, but its already been brought back from the dead so I am posting this.

How do you just leave the vac line in the can of seafoam? Doesn't the car stall?

i used a funnel and quick hands to keep the car from stalling. It's best to get a friend (that knows cars or can do what you say) to help you. i would put my thumb over the vac to keep it from stalling out. It was tough to do, but i got it done.

Rich J · November 15th, 2010, 11:21 PM

Thats what I do whenever I seafoam, I put the seafoam in a cup and put the vac line in for a second pull it out and put my thumb over it.

Btw Blacked out, I am getting LT's mad soon

BlackedOut04GT · November 17th, 2010, 08:32 PM

Originally Posted by demon_54

Thats what I do whenever I seafoam, I put the seafoam in a cup and put the vac line in for a second pull it out and put my thumb over it.

Btw Blacked out, I am getting LT's mad soon

March 19th, 2009, 02:22 AM	#3
97GT4.6 Hardcore Enthusiast 97 GT 14.2@99.8 @ 4800 ft Join Date: Oct 2007 Location: Fort Collins and Pueblo, Colorado Posts: 2,348 iTrader: 1 reviews	Does this stuff actually work? Is the smoke coming from the carbon, or is it the seafoam that's smoking? I'm considering it, and i guess it probably wont hurt anything. __________________ Cammed 2v Built By MustangMatt More mods than times your daughter has slept around

March 19th, 2009, 02:38 AM	#4
AMmuslGT Baby Punchin' Champ 2008 Mustang GT I have a toy Pony. He takes Big shits Join Date: Apr 2008 Location: Gilbert, Az Near phoenix Posts: 1,857 iTrader: 0 reviews	its probably the sea foam. ive never heard of this before lol __________________ Mods In garage

September 24th, 2010, 07:59 PM	#6
=BlackDog= Newbie 2003 Mach 1 Join Date: Sep 2010 Location: Florida Posts: 26 iTrader: 0 reviews	Thanks for the info! Did it today and it is idling smoother __________________ "If everything seems under control, you`re just not going fast enough." -Mario Andretti

November 15th, 2010, 07:27 PM	#7
Everett Hardcore Enthusiast 2000 gt Join Date: Oct 2010 Location: Saskatoon Posts: 1,053 Blog Entries: 1 iTrader: 2 reviews	ditto....smoothed out my idle....now i amdoing it in all my vehicles....bought a gallon of the stuff __________________ Black and White Crew Crew Member # 3 centerforce dual friction,.100 shot freeflow exhaust,70mm accufab tb,professional products plenum, tri ax,3.90s amazing how fast you can go when the road never curves .....lighting up the Canadian prairie

November 15th, 2010, 10:21 PM	#8
bottled2v Hardcore Enthusiast '00 gt, '95 gt, '83 lx 11.85@116 Join Date: Oct 2010 Location: Saginaw, mi Posts: 2,433 iTrader: 0 reviews	at work when we seafoam a car we just pull a vac line and stick it into the can of seafoam. it sucks it up into the car and you just pull it out every once in a while and see how much you've used. much easier than pooring it into the vac lines. __________________ '00 GT, hp 292's, full bolt ons, built/stalled auto, 4.10's, 150 shot-new times to come. '95 GT, 347, tko, etc-11.8@116-sold. WTT-my mildly built 4r70 for t56/tko.

March 19th, 2009, 01:20 AM	#2
BlackedOut04GT Hardcore Enthusiast 2004 Mustang GT 14.21@97.93 2.107 60' (Best pass. So far.) Join Date: Sep 2008 Location: Maynard, MA. Posts: 1,855 iTrader: 0 reviews	Forgot to say this. Pics are for a 2004 Mustang GT, but you get the idea.

March 19th, 2009, 04:04 AM	#5
BlackedOut04GT Hardcore Enthusiast 2004 Mustang GT 14.21@97.93 2.107 60' (Best pass. So far.) Join Date: Sep 2008 Location: Maynard, MA. Posts: 1,855 iTrader: 0 reviews	It's a bit of both. The Seafoam it self will make smoke come out the tail pipe, but there is also carbon in the smoke as well. If you watch the video I put up you will see white smoke first (mostly the Seafoam) and then it gets a little darker (thats the carbon). It does do a good job of cleaning out carbon from the motor.

November 15th, 2010, 11:21 PM	#11
Rich J I'm doing it wrong 04 Grand Cherokee Join Date: Mar 2010 Location: South Eastern, Mass Posts: 5,211 iTrader: 0 reviews	Thats what I do whenever I seafoam, I put the seafoam in a cup and put the vac line in for a second pull it out and put my thumb over it. Btw Blacked out, I am getting LT's mad soon __________________ Formerly known as Demon_54 "I feel the same way about disco as I do about herpes." - Hunter S. Thompson

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