derek_silvy

I'm gonna toss some more seafoam in my motor today. Which method of using it do you guys think is the best for cleaning the engine?

I'm thinking the vacuum line that is attached to the passenger side valve cover and TB would be the best, but I tried it on my friends truck (disconnecting it from the valve cover side) and there was little, if any vacuum on the line.

So... what to do?

slow.8

i just used the line coming from the brake booster, take it off and stick it in a cup filled with the stuff. beware, its going to smoke like you`re burning a tire dump.

derek_silvy

That doesn't lead to the crankcase does it? I don't want to be like the guy who filled his crankcase with seafoam.

deezel

The pass side tube is the vent for the PCV system = no vacuum.

Remove the PCV hose from the top of the intake manifold and use that vacuum port. Should be plenty of vacuum there.