ZerofluxCal

I was reading another thread and it mentioned seafoam...I would like to seafoam my car...the fuel tank and adding to oil is easy but I read that to do the best clean of your engine you have to suck 1/3 of a can through the hose that goes in to the PCV Valve? I have also read that people do it through the brake booster line the but PCV valve line does a better job.


Can someone show me a picture of the PCV valve hose I am supposed to pull off? that would help alot!

07redMustang

I always go through the brake booster when I seafoam. Any vacuum line will work as all you're trying to do is suck up the fluid into the intake manifold and down into the cylinder. The brake booster is located on the drive side of the car and it's bolted up to the firewall. It looks like this


(That's not a mustang brake booster but it looks the same). There will be a rubber hose that is connected to that just remove it from the brake booster and feed the seafoam through that line. When you remove the line it should make a hissing noise if you hear that then you know you have a vacuum line.

157dB

I would not recommend introducing sea foam to
the engine thru a vacuum line on a multi-port injected engine.
The fuel is multi-port injected and the fuel deposits
you are trying to clean off are only present after
the fuel injection point. Vacuum linesea-foaming was
for ThrottleBody injected vehicles. Putting it in the
fuel is good enough to clean the intake area. Also
I would not recommend putting it in your oil either.
Unless you have 100,000+ miles and this is your
first attempt to clean the crankcase with sea-foam.

ZerofluxCal

will it cause damage? if you don't recommend it then why does everyone do it?

157dB

Who is everyone? Jumped off a cliff lately?
There is no point in sucking sea-foam into a vacuum port on the intake
on a multi-port fuel injected engine. None. It could lean or richen the
fuel mixture and cause all sorts of problems. Now using a professional
fuel injector cleaner where you insert the cleaner thru one of the fuel
rail, pressure test, schrader valves is a whole different story.
But hey, its your stang and you were asking.

davesyo

Amsoil has a product , Power Foam that does the same basic thing that you spray in through the throttle body.