Have an 01 Screw 5.4 with 130,000mi. Tried Seafoam today and fed it in through the brake booster hose, did it slow and the engine sputtered here and there(read thats all normal) then shut it off for about 12 min, started up without hesitation and no smoke what so ever form the exhaust. Let it idle for 5-10 min and drove it around for 10 more. Should i try more of it? Oh and the truck was warm already. Anyone not had the smoke before?

 

did you use about 1/2 can?....it would smoke some even just to burn the seafoam off. I always use a small dia. hose

 

It won't really smoke unless you run the **** out of it, unless it has a TON of miles on it.

 

Yea I used a little over 1/3 of a can, and was reving it pretty high and no smoke.

 

dont worry about it. i had 123k on mine the first time i did it. not much smoke at all. thats a good sign.previous owner took care of it. i also have a 96 crown vic with 110k that thing smoked for like 15 mins straight after treatment with only half a can.

 

Thats what I was thinking, just no carbon to burn but I thought there would have been at least a little.

 

What do you mean by pretty high? Pretty high to my father is 3,000RPMs. Pretty high to me is 5500 RPMS.

 

redlined

 

Now dont you need to chang oil and reset com?

 

yes on the oil change but havent heard of reseting com.