okay guys, uhhh yeah id put like less than a lid full of seafoam at a time in the tb and it would start to bog down. in that video link he posted the guy was pouring it in there lol. idk what to do or what kind of damage could be coming in the near future. i did not replace the boots on the spark coils. auto zone or advance auto would carry these im assuming?

 

Oh look, we have an argument

I guess saying "fuel system" probably wasn't appropriate, I just thought it would be easier. I could have said that pouring seafoam into the TB would hot soak the upper cylinders, valves, pistons, rings, injectors, combustion chamber, PCV components, lifters etc in pure seafoam to break down any carbon/varnish build ups and lubricate everything. And I could have said that putting the other half of the can in the fuel tank would work towards cleaning and lubricating your fuel pump, filter, lines, injectors, pistons, heads, valves and the rest of the fuel system as you drive. But I was lazy.

P.s: If applied properly, seafoam will be the best ten bucks you ever spent on your Jeep. You will notice quicker starts, smoother idle, stronger acceleration, reduction or elimination of minor knocks and pings, better fuel mileage and just better all around performance. It really is a little miracle in a can. Especially for the legendary 4.0l.

 

Try to add the seafoam throught the brake boster line. Add about half slowly them right you are done with half, dump enough to stall the engine.(if it does not stall, turn off the engine) Therefor the seafoam is sitting inside the cylenders to clean them. Wait a few minuets and start the engine. Go out and do some high rev driving. If you do add it to the fuel tank, it might cause the fuel filter to be cloged with debris.

 

Well like I said I am stumped because I added half to the tank and a tiny bit under half to the tb. It couldn't take any more. Every time id drop a thimble full in there it would start to bog down and die

 

BG44K all the way. Dump it in the tank and let it do its work. I have sold this stuff for a long time...never had 1 can come back un-satisfied.

Later,
codfish

 

while the engine is running with a screwdriver handle tap on the sensors and wiggle the connections. I had a rough idle situation and after rebuilding the head which it needed and timing gear set and chain it still had a rough idle. The throttle position sensor wire connector was bad but would not throw a code. Disconnect the battery posative and touch it to ground for about 1 min then turn the key on but dont start it then turn the lights on and off and turn the key off. Then start it and let the computer set the new values. As far as the seafoam force it in there feather the throttle to keep it running until you get half the can in the engine but let it warm up first. Let it set at least 10 minutes then start it out in the open it will make a smoke show the more the carbon the more the smoke. Do you know how many miles are on the engine it may need valve guide seals mine were hard as rock and the exhaust valves were real sticky seafoam might loosen them up but they will soon start sticking again you can tell when you floor it by how much blow by comes out the breather tube on the valve cover. The best way to treat the oil system is to add about 1/2 quart AFT to the engine oil about 100 miles before you do a oil change it dissolves the sludge in the engine then put in good 5w30 oil with a new filter I prefer valvoline. Do not run the engine for extended periods with a additive in there it will alter the viscosity. flush it first then add fresh tranny oil is high detergent and will open up the journals.

 

Rings, no. It combusts before it can bypass the rings therefore having no cleaning effect.

And yes and no, it may just clean up some carbon and expose a major problem therefore causing failure of the engine. Its a win lose situation.

 

It will clean the rings if you add enoguh to stall the engine or turn it off right after you add a lot of seafoam. The fluid will be sitting inside the cylinders, thus cleaning them. BTW adding to your TB is not advised, it is much easier and safer to add it throught the break boster. When you disconnect the booster line, the engine will rev higher therfore it will not stall when you add the seafoam. go to this website. http://www.seafoamsales.com/, click on "learn about our products, then "motor treatments", then "how to use" ( on left side), then " cleaning varnish and carbon deposits- fuel injected engines".

 

That supposed "stall" might be a hydrolock in some cases.....

I have never heard to stall it. And yea, let it sit in the cylinders, cause the only way it would get past the rings is if there is worn parts or cracks clogged up by carbon around the rings, than it will clean out the carbon deposits and youll have piston blow by.....very very smart.

 

There is too much controversy here I got a obd diagnostics check and no codes are being thrown so I'm gonna take it to a buddy's shop and hopefully they don't skrew it up/make the problem worse so then ill be charged ten million dollars

 

I suppose you could take it to a mechanic have him replace alot of parts and still have the same problem after you parted with all that money you dont need or you can try the simple things first and try and determine the fault or faults. I would start with codes and wiring mess with connectors to see if it gives you a light or the engine flutters. Make sure all the wiring is in good order and your grounds are clean and metal to metal. Check the timing is holding steady and in time at an idle and . I am lucky and have a bone yard for jeeps close and can get sensors to determine if they are bad before paying for them. My whole putt putt thing was the throttle position sensor connector on the harness and got it for free and am still using all the old sensors. If your pushing 200 grand on the odometer your probably in need of valve guide seals. The cylinders on mine still had cross hatching on them after 180,000 so I lapped the valves put new gaskets and seals A new timing set and running pretty good right now knock on wood. Oh yea I paid myself around $1500 for my effort roughly $75 an hour.

 

massive amounts of carbon built up in cyl 1, smashed spark plug into coil, replace coil and plug clean carbon 68$ in the shop. i would of never guessed it. the spark plug conductor that comes out of the plug came loose and hit the bent peice in front of it and massive missfires. but now its better. only 1 puttputt per 20 seconds lol

 

I'm glad you got it fixed, and I'm sorry that this forum wasn't much help for this particular issue. Unfortunately, an argument started and threw the whole thread off topic, distracting some. I've used Seafoam in two of my vehicles with no adverse affects. My last vehicle ran for 200,000 miles, then I sold it with no work done to it. Lucky? Maybe. I've also seen the other side of this, a friend ran seafoam and a month later replaced his head gaskets. Coincidence? Maybe. Either way, your Jeep is fixed, and I hope you stick around the forum because you can learn a lot, like I have.