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Old 09-21-2014
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Seafoam Procedure questions

Hey guys and gals, I've been searching all the forums about Seafoam, and while I've found a few random "do this" "do that" posts about it, I'm wondering if anyone knows of an actual write up on how to do a good Seafoam treatment on the 4.0. I just replaced my plugs and wires yesterday 9/20, and I'm about 3K into my last oil change, so I'd like to do that as well post foaming, along with the transmission filter/fluid, and fuel filter. My engine has 136500 miles on it. the last owner was kind of a douche with the upkeep of the engine. I'm guessing I'll be getting arrested for extreme pollution if I do a thorough foam to my truck.
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Old 09-21-2014
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Personal opinion.
I use Seafoam in the fuel tank once a year, I do this because I use Regular gas that doesn't have additives.

I wouldn't use Seafoam in the intake, because my spark plugs look fine, i.e. no carbon build up, and I have no "pinging" on regular gas, so no carbon build up.

I wouldn't use it in the oil because my oil filler and dipstick look fine, i.e. no sludge.
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Old 09-21-2014
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Quote:
Originally Posted by HawaiiRanger04 View Post
Hey guys and gals, I've been searching all the forums about Seafoam, and while I've found a few random "do this" "do that" posts about it, I'm wondering if anyone knows of an actual write up on how to do a good Seafoam treatment on the 4.0. I just replaced my plugs and wires yesterday 9/20, and I'm about 3K into my last oil change, so I'd like to do that as well post foaming, along with the transmission filter/fluid, and fuel filter. My engine has 136500 miles on it. the last owner was kind of a douche with the upkeep of the engine. I'm guessing I'll be getting arrested for extreme pollution if I do a thorough foam to my truck.
There are videos of people doing it on YouTube that you can watch. It's much easier to refer to a video than written instructions. I've only Seafomed the intake once, but I'd say there was a noticeable difference for a little while in how the engine ran. Seemed much smoother. I still dump a can in with a tank of gas every now and then too.
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Old 09-27-2014
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You can put 1/3 on the brake booster vacuum.... But dont fill it too fast otherwise its possible that you could hydrolock your engine, make sure your engine doesnt stall.
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