Rock-a-Lex

iTrader: (4)

Someone please give me some re-assurance in doing this. I'm scared.lol I read a lot of posts (and DIY's) where there is step-by-step instructions and things to avoid but I still fill unsure. I have 101K miles on her and she's my daily driver. I wouldn't want to screw anything up. Anyone here have first hand experience with this stuff?

wowitztai

iTrader: (1)

find a vacuum near the intake manifold and use that to suck up the sea foam

Rock-a-Lex

iTrader: (4)

What about the Brake booster line?

GSteg

iTrader: (15)

Brake booster line is okay. They're all sources of vacuum lines that all come from the intake system. I use the PVC valve instead because I dont like touching anything relating to the master cylinder area.

skaiyun

my vacuum didn't really suck it good. do i need someone on the gas?

GSquicksilver

dude...if you have to give it gas...you're messing up.

there is plenty of vacuum.

skaiyun

yeh was looking at the hose right before the throttle body - no sucking power

GSteg

iTrader: (15)

Not all hose will provide the same amount of vacuum The brake booster will have a lot more suction than the lines before the throttle body. I use the PVC because it's adequate enough, but I still have someone rev the engine to about 2k rpm regardless

jcat_350

do what you gotta do homie, but in my opinion and experience with seafoam, used on a maxima VQ30DE with 130k, the damage is basically done. You might see a marginal improvement but i'd sooner spring for Restore treatment than seafoam...

Rock-a-Lex

iTrader: (4)

....wait, you mean from the use of the Seafoam? or just in general from having a car with high(er) mileage? LMK

GSteg - which one is the PVC valve line? where? Thanks

lexusscturbo

iTrader: (12)

For a car like the GS I'd just 2 cans just because its a 6 cyl or 8
Use 1/3 for the vacuum line after teh car is warmed up 1/4 way(temp);
just let it suck in and turn the car off (let it sit) longer it sits the more it cleans.....

The next third in the oil..

The next third in the gas tank..

After at least 30 minutes or so start her up and then drive her in L or 2nd (near redline) till all your smoke is gone. Change the oil in about under 150 miles.

Also get the deep creep and spray the Throttle Body
And get MAF cleaner and clean out your MAF too

carbongs

iTrader: (13)

i use the PVC line as well. i also run 2 cans through the system at a time

DASHOCKER

iTrader: (2)

I would think that any foaming product would leave residue.

I personally would want residue free motor internals.. That is why I get it proffessionally done.. Bilstein process & the Runrite fuel injection service ftw..

GSteg

iTrader: (15)

^^Werd. I've only used seafoam once or twice on my car. I went with a fuel injector service and my car improved much more than seafoam ever did. Plus it cleans more than seafoam itself. Lucas fuel injector cleaner provides nice lubrication. Got my noisy injectors quiet almost instantly!

GSteg

iTrader: (15)

Take off the engine cover and the PVC should be located very near the engine oil tube. It's the hose that connects to the valve cover. You do not need to pull out the entire PVC, just the hose itself.