HoppyFX4

I did 1/2 gas, 1/2 vacuum on Friday. I can def tell a small change in the engine noise. Less tick, I still have a very subtle rough idle at low RPMs still (stop lights, warm start-up, etc...) so I may throw a full can in there before my next fill up since I have the 35 gallon tank. However, it was worth the $10, even threw a can in my wife's Jeep with 122K and I could tell an even bigger difference with her V6.

BISCUT

So, infused 1/3 can SeaFoam into the vacume line coming from master cylinder to valve cover and oly got a little bit smoke. 2004 Lariat 5.4 3V 60k miles. Does that mean my **** is pretty clean? Or wrong vacum line?

I did let it sit for about 7 - 10 minutes after I got the 1/3 cam in there.

Did I screw this up????

OKStateF150

No man you'll be fine. That happened to me when I used only 1/3 of a can. I only got a lot of smoke when I used 1/2 can and let it sit for ~10 mins. I just went back to wal Mart and got more and tried it again.