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Old 08-16-2009, 08:33 PM   #1
getek20
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Default Pic request : Where to pour Seafoam in a 2006 WRX?

Requesting a pic identifying exactly which hose in my 2006 WRX I need to pour Seafoam in. Thanks.
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Old 08-16-2009, 08:45 PM   #2
09rexwagon
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Power brake booster vacuum hose?
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Old 08-16-2009, 09:00 PM   #3
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No, I would not use that spot. Instead, use vacuum line off of BPV.
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Old 08-16-2009, 09:04 PM   #4
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Post pics please. I've seen pics demonstrating this on older Subarus but none like mine.
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Old 08-16-2009, 09:05 PM   #5
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Why wouldn't you want to use the brake booster line? Seems that most people I've seen use SF for induction cleaning use that vacuum line.
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Old 08-16-2009, 09:13 PM   #6
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Quote:
Originally Posted by 09rexwagon View Post
Why wouldn't you want to use the brake booster line? Seems that most people I've seen use SF for induction cleaning use that vacuum line.
It only affects one cylinder...
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Old 08-16-2009, 09:14 PM   #7
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Quote:
Originally Posted by getek20 View Post
Post pics please. I've seen pics demonstrating this on older Subarus but none like mine.
Just pull vacuum line off of BPV - I am sure you know where BPV is located, right?
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Old 08-16-2009, 09:28 PM   #8
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Quote:
Originally Posted by txl146 View Post
It only affects one cylinder...
As a sanity check, I went into the garage and checked. On the 08/09 the brake booster line goes directly into the middle of the IM so it will feed all 4 intake manifold runners. I guess it's different on the earlier WRXs.

I couldn't see where the BPV line went...it heads under the IC.
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Old 08-17-2009, 01:58 PM   #9
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Quote:
Originally Posted by txl146 View Post
Just pull vacuum line off of BPV - I am sure you know where BPV is located, right?
I have an idea, but I'm not entirely sure. I'm not the most car savvy person. I'm trying to learn and teach myself things as I go. A picture would help me out immensely.
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Old 08-17-2009, 02:14 PM   #10
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Quote:
Originally Posted by getek20 View Post
I have an idea, but I'm not entirely sure. I'm not the most car savvy person. I'm trying to learn and teach myself things as I go. A picture would help me out immensely.
On that aluminum radiator looking thing on top of the engine (intercooler), on the right side there is a cylindrical device mounted to it at an angle with a rounded diamond looking flange (sorry best description). It has a fat host coming off that is parallel with the flange and a skinny hose coming off the end of it. That's the bypass valve.

It's the middle device on the right side.

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Old 08-17-2009, 02:39 PM   #11
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Quote:
Originally Posted by 09rexwagon View Post
On that aluminum radiator looking thing on top of the engine (intercooler), on the right side there is a cylindrical device mounted to it at an angle with a rounded diamond looking flange (sorry best description). It has a fat host coming off that is parallel with the flange and a skinny hose coming off the end of it. That's the bypass valve.

It's the middle device on the right side.

You're referring to the hose connected to the part located directly beneath the "I" in STI on the intercooler? It appears to have a big "Z" on it with the code K5T09796... Is that the one?
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Old 08-17-2009, 02:51 PM   #12
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Quote:
Originally Posted by getek20 View Post
You're referring to the hose connected to the part located directly beneath the "I" in STI on the intercooler? It appears to have a big "Z" on it with the code K5T09796... Is that the one?
You got it.
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Old 08-20-2009, 09:19 AM   #13
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Here's a thought. You have an 06. I'd just run you gas down to a quarter, dump a can in and run it down to almost empty. Unless you really lug your engine or using crap gas, your fuel system shouldn't be all that bad. (of course you will miss the really cool smoke show) RP
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Old 08-20-2009, 10:05 AM   #14
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I used a full can of Seafoam last night, but the results weren't quite what I had expected. No smoke at all! I did 1/3 in the gas tank, 1/3 in the oil reservoir, and 1/3 in the PCV hose. I followed the instructions exactly as written on the can. I'm thinking maybe I didn't use enough? Next fill-up I'm thinking of using a full can in the gas tank and split another can between the oil reservoir and the PCV hose. Should that do the trick?
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Old 08-20-2009, 10:14 AM   #15
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I personally would not put it in the oil. I don't really trust anything other than oil in the crankcase. If you think it is dirty in there, then do a couple short OCIs with a high detergent oil.

On the other hand, in the fuel tank and induction through the intake system is fine. You must not have much carbon build up on the valves/pistons. If you've been running top tier 91+ octane fuel, then you probably wouldn't on a 2006.
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Old 08-20-2009, 10:28 AM   #16
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Quote:
Originally Posted by 09rexwagon View Post
I personally would not put it in the oil. I don't really trust anything other than oil in the crankcase. If you think it is dirty in there, then do a couple short OCIs with a high detergent oil.

On the other hand, in the fuel tank and induction through the intake system is fine. You must not have much carbon build up on the valves/pistons. If you've been running top tier 91+ octane fuel, then you probably wouldn't on a 2006.
I'm getting an oil change within the next week or two so I figured I'd put it in the oil. It's supposed to loosen up impurities which eventually get flushed out during the oil change.
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Old 08-20-2009, 10:55 AM   #17
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Yes I highly encourage you to not go very long with that stuff in your crankcase. It is going to shear the hell out of the oil you have in there (it will come out at a much lower viscosity than it should) so I wouldn't drive it too hard with the SF in the oil.
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Old 08-23-2009, 06:27 PM   #18
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I've used 2+ cans of Seafoam so far and was not able to produce any smoke. The first can I did 1/3 in the gas tank, 1/3 in the oil reservoir, and 1/3 via the hose pictured below. A few fill ups later I decided to use 1 full can in the gas tank and sucked up an additional 1/3 can via the hose below. Am I doing something wrong?

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Old 08-23-2009, 06:44 PM   #19
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I used 1/4 can of Seafoam and introduced into BPV vacuum line. It produced minor white smoke, but nothing like what people have described in this thread. Guess result varies
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Old 08-23-2009, 11:15 PM   #20
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Quote:
Originally Posted by getek20 View Post
Requesting a pic identifying exactly which hose in my 2006 WRX I need to pour Seafoam in. Thanks.
you
do
NOT
pour
seafoam
into
anything
except
the
gas
tank
or
the
oil
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Old 08-24-2009, 09:47 AM   #21
getek20
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Quote:
Originally Posted by Uncle Scotty View Post
you
do
NOT
pour
seafoam
into
anything
except
the
gas
tank
or
the
oil
What makes you say this? The instructions on the can specifically say to do so. All the videos I've seen reinforce this. The majority of Seafoam users also mention that they sucked it up into the hose as well.
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Old 08-24-2009, 09:56 AM   #22
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Quote:
Originally Posted by getek20 View Post
What makes you say this? The instructions on the can specifically say to do so. All the videos I've seen reinforce this. The majority of Seafoam users also mention that they sucked it up into the hose as well.


you will almost certainly do it wrong
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Old 08-24-2009, 10:19 AM   #23
getek20
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Quote:
Originally Posted by Uncle Scotty View Post


you will almost certainly do it wrong
It's not that difficult. I poured Seafoam into a small container and sucked up a little bit at a time, making sure not to suck up too much at once.
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Old 08-25-2009, 01:42 AM   #24
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sort of a weird question, but would spraying the foam onto your top mount IC while the car is running work?
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Old 08-25-2009, 08:07 AM   #25
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I will make it simple; put it in the fuel tank!
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