Contemplating running seafoam through my brake booster vacuum line, but have read about it hydrolocking your engine and am very worried about this. What are the chances of this happening and how fast should it be fed into the vacuum hose?

 

i did seafoam through my brake booster line and it went fine, i did about half a can in the line and half in gas tank. but just slowly let the line suck out the liquid or slowly drop it in, dont subwmerge the line in it, thats when people have problems.

just go slow and you'll be fine !

 

Alright. So about how long did it take for your truck to suck up that half a can?

 

Can I ask what you're attempting to accomplish with the Seafoam? Cleaning the throttle body, MAF, and what you can of the intake by hand is a much better option. If you're worried about carbon deposits, a PEA cleaner will be much more effective for that area.

https://www.f150forum.com/f6/seafoam...-79106/index2/
https://docs.google.com/viewer?a=v&q...KNpBUM4vTSjGRQ

 

I put half a can in the brake booster line with a funnel. You put in a little in at a time. The vacuum is stong enough to suck it all down. Shut off the engine, and let sit for 15 min. Upon restart, you see a lot of white smoke out the exhaust, which is the carbon deposits and dirt getting blown out. That goes away after a while. AND, you still need to clean the throttle body and IAC valve (mine was full of carbon deposits) and the MAF sensor (with dedicated MAF sensor cleaner). Good preventative maintenance.

 

Naphtha which is the main ingredient in Seafoam when burned incompletely burns white. Carbon and silica (dirt) do not burn in an engine environment. Why would you want to push that through the combustion chamber anyways? The white smoke mainly tells you that the front O2 sensors aren't good enough to cut enough fuel to make the naphtha burn fully, not "burning off" deposits like the marketing wants you to think.

 

Hmmmm - guess I was one of those suckered in, then. The marketers will have you believe that this cleans the upper intake and combustion chamber. (There are also plenty of YouTube videos of users like myself, but the claims are that this action is cleaning!) What I haven't seen is a so-called de-facto standard for such cleaning products, like we do with Gotts Mods (universally accepted here as a performance mod). Maybe it's time for a sticky of what are the recommended products/procedures to keep our Gen 10s performing well. BTW, Seafoam was the only "snake oil" I've put in my vehicle.