SEA FOAM!!!

[thekubiaks]

OK, wait a minute?? I used Sea Foam on my '92 4.0, through the brake booster. Should I try it again through the front of the intake after the MAF?? I noticed a marked improvement in how it runs, but if I need to do it again I will. I also used it on my wifes 98 Wrangler 4.0. It smoked like a fiend for about 30 mins, and the CEL came on. Light went out after a day or so and it runs 100% better, like I added another 2 cylinders.
It's worth the $4.99 for the smoke alone.....

Since there are some people on this board that have a strong opinion with regards to not using the brake booster, I went ahead and ran another 1/3 of a can of Sea Foam through the throttle body. I got a little more smoke, perhaps it was carbon on the front cylinders. Anyway, the car purrs, 450 rpm at idle and smooth as glass. As for those with a strong opinion, thanks for the info, I appreciate your very helpful knowledge.

 

[huskyfan23]

My last Seafoam I ran through the TB line, MUCH BETTER. Idles a lot quieter now. I love this stuff! The other day I bought some transmission stuff and poured 1/3 pint of the motor treatment into my oil. Every oil change I'll be running some through the oil and engine.

 

[Spdrcer34]

Huskyfan:

Having done it BOTH ways, which way would you recommend people do it?

I only have ~120 posts at this point, and automatically people discredit me, and my cautions of using the brake booster line. I have worked on cars FOR YEARS, I own 2 Explorers, my Sister owns 1, my father in law owns a Moutaineer, and I have friends that own a cumulative total of 6 Explorers/Rangers. I know my way around Ford Trucks.

So again, I state the following:

DO NOT USE THE BRAKE BOOSTER LINE. Use a Vacuum line as close to the TB. Use a TB Vacuum line if at all possible.

Ryan

 

[huskyfan23]

I recommend the TB line. The brake booster line gave me ZERO smoke and I didn't notice any difference after that method.

 

[andylant2003]

Where on my '03 is the TB line located? I used the Brake booster line a few months ago and got all kinds of smoke and a noticable improvement on performance. Help me out, please.

 

[ThespecialistKC]

So where's the TB line on a '92 XLT???? I don't remember seeing one anywhere. Or do I need to pull the air intake tube loose and do it there??

 

[Spdrcer34]

The vacuum line is 'under' the TB. You must remove the tube, and cable shield to see it.

Ryan

 

[j602]

You can just follow the TB line until it comes out in front of the driver side headlight. Twist it apart at the joint and let it suck the SeaFoam into the TB. I defnitely recommend the TB line over the brake booster also.

 

[BigBadWimp]

So, when you put a third in the intake, a third in the oil and a third in the gas tank, are you supposed to dirve it until the smoke clears and then change the oil, even though you just put a third of seafoam in there? Also, can anyone guide me in the right direction as to where a vacuum line on the TB is on a '94?

Also, why do you need to change the oil afterwards? Not that I don't believe you guys, I'm just curious.

 

[huskyfan23]

I put it in my oil and leave it there until the next oil change. The line on ALL the throttle bodies is under it.

 

[BigBadWimp]

Well, I just changed my oil about 2 or 3 weeks ago, so if I did this to my truck it would be fine until it's time to change my oil again?

 

[Mbrooks420]

If leaving it in worries you just put it in a week or so before the oil change. All it does inside the motor is clean the oil passages, and probably doesn't take that long.

 

[aldive]

If leaving it in worries you just put it in a week or so before the oil change. All it does inside the motor is clean the oil passages, and probably doesn't take that long.

If one uses a quality oil, any oil addative is simply not needed. Sea Foam is a great intake cleaner and gas treatment, its just not needed in the oil.

 

[BigBadWimp]

Well, since the car is somewhat newer to me I don't know what kind of oil has been used before us and I might be inclined to use some in there atleast once.

 

[msmith65]

Experience

I did Seafoam this Saturday on a 93 V-6.

I pulled the air intake hose completely off -- the big one between the air filter and the manifold. This leaves a big manifold "mouth" facing frontward with a butterfly valve just inside it.

For pouring the Seafoam in, I put together a small funnel, a few inches of fuel line hose, and an L-shaped connector.

I held the homemade pouring assembly vertical and pointed the L at the 4-o'clock position just inside the intake's mouth. This allowed me to hold the Seafoam in the same hand as the funnel and pour it with a little motion, while working the throttle with my other hand.

It was tricky to give the engine enough gas to a) open the butterfly valve enough for the Seafoam to get drawn in, and b) keep it running when the Seafoam slowed it down. I spilled a little by not using enough throttle. Too much Seafoam (or not enough throttle) killed it twice, but it restarted easily. A fair amount of white smoke came out of the tailpipe. When I overloaded the engine, some backfired out of the intake and stunk up my clothes.

The engine struggled quite a bit until it cleared the last of the Seafoam, and I got a CHECK ENGINE light several times.

The car ran terribly thereafter -- random die-offs at idle and a loud hissing noise. Upon returning home I found a cap had come off one of the unused vacuum ports on the driver's side of the manifold. I guess it blew off with one of the backfires.

I replaced it and the car runs smoother and more powerfully than before. All in all a good experience. I only wish I'd thought ahead or read these posts more carefully to discover a smoother method of pouring.

I would also make sure you have a can of throttle-body cleaner to use on the butterfly valve. I sprayed it down and melted quite a bit of varnish. (Could be this helped to clean things up as well as the Seafoam.)

 

[Rhett]

When I overloaded the engine, some backfired out of the intake and stunk up my clothes.

That's why Seafoam recommends using a vac port rather than removing the intake tube.

Removing the plastic intake tube can be done, but you can have running problems during Seafoam application, and also you can get nasty air right in your face out the manifold...

 

[Ford_Racing_Guy]

Seafoam Deep Creep in a can works great for using directly into the throttle, but you spray it in when the engine is off but warm then let sit for few minutes and then start it

 

[DNBCHRD]

I just sent some through the vacuum hose on the tb... did a third of the can, as per the instructions... smoked white for a minute maybe.. not too long at all, and I don't notice much difference in engine performance, even after driving around the neighborhood for a bit. i think i'm going to go send the rest of the can through.

 

[Coonash]

Is this like pouring transmision fluid in the gas tank? I did that before ( in an old car)and it really blew carbon out. Car ran good after that. Some "Old-Timers) had told me about it.

 

[Ford_Racing_Guy]

i've heard of the transmission fluid used on diesels mostly but i've heard a few that did it in gas vehicles as well