So I did a seafoam treatment today, a followup from one I did a week ago. Less smoke this time and idle is silky smooth.

 

Tried to post the videos but can't.... it is comical

 

What engine do you have and how bad would you say the smoke was? I've got an 02 4.0 V6 with just under 130 on it and I've been thinking about doing this as my idle is a littie rough at times even after new plugs and wires but I've heard good and bad about seafoam. Some people say don't use it and some say it's great.

 

I've got an 01 4.0 sohc, did it thru brake booster line twice now. My results have been positive but I'm not trying sway your opinion.

 

Forgot to comment about smoke. It was allot of smoke...more the first time than the second but significant both times. I let it brew 20 minutes both times with the engine being off but at running temperature

 

Thanks Milkman. I may have to give this a try if I can find a good place to do it.

 

Finally got the videos to load

 

Once I hit the road...

 

Chevron Techron II is pretty good. No smoke. My O2 sensors go off every time I use it so I know it is doing something. I used Seafoam. Seems like overkill.