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Discussion Starter · #1 ·
So I've been reading about the magic of Seafoam so I figure I will give it a shot. My truck has 112k miles and I am about to embark on a 3.3k mile trip. I'm just not sure which hose is the vacuum hose. I looked on Youtube and searched on here and no one specifically shows which hose.

Red or blue?
 

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Blue is the one you are after. Just pump up your brakes until they are hard, unplug the hose and pour your sea foam in there. The reason for pumping up your brakes (when truck is off) is to use up the vacuum reserve in the booster to make the hose easier to pull off the check valve.
 

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Blue FTW!

You can also run the seafoam through any other vacuum lines that are attached to the intake manifold/TB.
 

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Discussion Starter · #5 ·
I seafoam'd today. I just put it in the brake booster vacuum and the gas tank, since I just changed my oil a week ago. I got lots of smoke! I will keep you updated if I notice any difference with performance or mileage.
 

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I thought you were supposed to do it before you change the oil. Run it about 50 miles and change it out. Or is that only when you put it in the oil?
 

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The reason that they don't put it in the oil ( crankcase ), is because todays motor oil has all the detergent & additives to keep your block clean in the oil passages & every where oil belongs within the engine block

If you were to buy a gunked up vehicle, that was not serviced properly, then possibly adding it to the crankcase might break gunk loose & you would do it not too long before a oil & filter change.
 

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Discussion Starter · #11 ·
I would assume it is good, meaning you don't have much gunk build up in your engine, but I could be wrong. On a side note, is there such a thing as too much Seafoaming? I was thinking that since I don't know my truck's past history I would Seafoam every oil change for about 4 oil changes then go to every other oil change.
 

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I don't think it can do any harm, but I certainly wouldn't waste the money. Do it once every 50k miles or so and that's more than enough. If there wasn't much smoke it means the engine is clean.
 

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does seafoam not also come in a pressurized can with a hose that can be sprayed right into the intake before the throttle body?

Delco used to also make a product called Cleens...it also had a pressurized can with a hose that you just sprayed into the throttle body while the engine was running..shut er down let her soak in and then run (just like the seafoam).
 

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I honestly need to read up more on the Seafoam, because it sounds like it would be dangerous on the engine to me. - though I'm sure it's not because it's been around forever.

How exactly does it work? :shy: (I'm going to google is as well)
 

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I seafoamed my old car before, and never had issue with the engine or anything after that. If no smoke comes out your engine is clean so that is good! How I did it with my old car was I would pour the seafoam in a solo cup, take line off and just keep it just touching the port so I could start engine, then put hose in solo cup for it to suck it up and let the engine run till it dies. Then I have it sit for a little then connect hose and start it up and go for a drive.

Is that a wrong way to do it? Also is it better to do after oil change or before? I did before on my car.
 

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That sounds like the way to do it to me. I fed my 2006 4.7 about half a bottle through the vac line and it didn't hurt it. I couldn't tell any positive difference either but I like to think it was cleaner on the inside, lol. I don't think it matters about the oil change as long as you are only running it through the induction system or adding it to the gas tank and not putting it in your engine oil. Some have done it and it may be fine but I personally don't recommend adding Seafoam or anything else to your oil.
 
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