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Old 05-28-2006, 03:40 PM   #76
T-boner
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Quote:
Originally Posted by RIRENTER
Do the 05 STI's have this problem? My vin: 5*513678? I have the symptoms. They came out of no where. WHat do you all think?
From pg. 1: "VIN's after 5*502352 don't have it"

Sounds like you're in luck, as far as the filters go. Bad news tho, 'cause you got something else going on eh?
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Old 05-28-2006, 03:48 PM   #77
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Quote:
Originally Posted by GotHP?
Great post, I have occasional rough idle in my STi but figured with all my mods it could be anything. Time to get rid of those filters!
Same description here. Catless, EcuTek'd, P&P on the turbo.
Occasional rough idle and off idle hesitation. Not really bad enough to do anything about. So I tried the TSB- now it's gone. My passenger side screen looked great, but was out of the bolt. My driver side screen was torn, but did not look like anything had broken off.

Everybody should do this. BTW: If you have a large torqe wrench (25-225 lbs), then be really careful. I did not notice the click at 25lbs initially and was probably around 40-50 pounds before I figured this just aint right. I stopped before I snapped anything. THe 25lb click is really light and almost not noticeable.
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Old 05-28-2006, 04:11 PM   #78
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Inch/lb torque wrenches are awsome. I love using them even on small bolts.

Anyway, I did this a while back and it didn't seam to change much, may have idled a lil smoother but I still get that every once and a while dead miss type idle but i think it's just part of the car. It does it completely stock.
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Old 05-28-2006, 04:59 PM   #79
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Quote:
Originally Posted by RIRENTER
Do the 05 STI's have this problem? My vin: 5*513678? I have the symptoms. They came out of no where. WHat do you all think?
the TSB states - a countermeasure was made eliminating the filter from the union screw in April of 2005 starting with the following VINs:

VEHICLE STARTING VIN
Impreza STi 5*502352


hope this helps
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Old 05-29-2006, 09:58 AM   #80
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OK, it's done and it took all of 10 minutes. Including a beer break.

She idles noticeably smoother now! Great "mod", just do it!
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Old 05-29-2006, 10:09 AM   #81
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I will have to go out and check my VIN and or make sure I don't have those filters.
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Old 05-29-2006, 12:48 PM   #82
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bump - rem check out when return home
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Old 05-31-2006, 12:53 AM   #83
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Quote:
Originally Posted by Peaty
If you look at my link to the TSB it will show you the VIN numbers where they started leaving out the filter, sometime in april 05.
I agree - I've read that too. But I'm puzzled. I purchased my STi in Nov. 04 and my vin is sequenced numerically after that vin number. How is that possible? Unless that date is not mfg date but some other date.

My vin is 5*51585* - which comes numerically after 5*502352.

Thoughts?

Last edited by STI05; 05-31-2006 at 12:59 AM.
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Old 06-07-2006, 08:24 AM   #84
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did it last night while i was changing the oil.
04 STi w/ ~43K miles.
both filters had dropped and were clean.
have not driven enough to tell conclusively if the idle is improved.
but i am glad that i did it.
Thanks, Peaty, for the walk thru.
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Old 06-16-2006, 10:09 PM   #85
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Well - I checked - so go by the VIN number and not the date. No filters here.
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Old 07-16-2006, 09:43 PM   #86
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Do the 06 WRX's have the same problem? My TR "rumbles" and shudders at idle so I'm wondering if it has the same filter issues? I checked the motor mounts and they're not broken.
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Old 07-16-2006, 09:52 PM   #87
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Not part of the TSB AFAIK.
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Old 08-24-2006, 07:25 PM   #88
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Holy crap, I cannot believe I missed this thread until now! I saw "'04 Turbo motors" and ignored it... Well my VIN 502097, just a bit before the changeover. Looks like I will be adding this to my list of things to do this weekend, along with an oil change, brake fluid change, and SS brakelines.
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Old 08-24-2006, 07:32 PM   #89
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I recently pulled a P2092 Camshaft Actuator code. I'm going to pull these filters out, even though i doubt they would have caused the code. Did anyone else have this 2092?
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Old 08-26-2006, 08:16 PM   #90
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Well this is odd... I pulled the banjos today, and there were no filters. I guess during one of the two times I had my car at the dealership for sevice, they pulled the filters.
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Old 09-25-2006, 10:17 AM   #91
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i have a o6 FXT with 300 miles on it that idles kind of rough.. from what i read i shouldn't have a screen but is it possible that i do?.. anyone know?
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Old 09-25-2006, 10:36 AM   #92
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Quote:
Originally Posted by Evil2.5XT View Post
i have a o6 FXT with 300 miles on it that idles kind of rough.. from what i read i shouldn't have a screen but is it possible that i do?.. anyone know?
Idle will get better as you put more miles on the car. Check the idle with the AC off also - that will affect it as well.
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Old 01-22-2007, 11:15 PM   #93
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Well, finally got around to doing this.... I'm glad I did.....

The filter on the right (Driver side) was pulled out just as you see in the pic. Both filters were way down in there and had to use some needle nose twizzers to pull them out. Both were clean. The driver side banjo bolt was not torqued to spec and was easily removed, there were no visible leaks. It seems like that oil pipe was removed once before as evidenced by the scoring on the banjo bolt head.

We'll see how she idles for the next few days. It was idling rough before, that's why I went ahead and performed this procedure.

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Old 03-19-2007, 01:39 PM   #94
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Default Did it

2004 STi
Approx 40,000mi
Stock besides catback/panel filter

Both sides were dropped down. Driver's side had tears in the screen but both were still in one piece. I was worried about the screens dropping into the heads so I took my time and carefully/slowly removed them. Not hard to do at all. I did it as a preventative sort of thing. I had no idle issues beforehand.
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Old 03-20-2007, 03:26 PM   #95
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Hmmm, Interesting. Thanks for the post
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Old 04-11-2007, 03:03 PM   #96
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just took care of this on my car. both of the filters had dropped. no previous problems tho, just wanted to be safe and get rid of those filters
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Old 05-07-2007, 03:21 PM   #97
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Great thread! I just did mine and it took longer to get my tools out and get ready for the removal than to actually do it. I went the cheap way and reused the copper washers. I will keep checking for leaks to see if any develop. But so far so good.

2004 STI
37K miles
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Old 05-07-2007, 03:57 PM   #98
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Quote:
Originally Posted by 2004_STI View Post
Great thread! I just did mine and it took longer to get my tools out and get ready for the removal than to actually do it. I went the cheap way and reused the copper washers. I will keep checking for leaks to see if any develop. But so far so good.

2004 STI
37K miles
Idle get any smoother?
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Old 05-22-2007, 01:08 PM   #99
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Default Just did my 04 FXT....much better!

Took a bit longer than advertised.....you really need tweezers or very thin pliers to get the filter out! The regular needle nose dikes are not narrow enough. My filters had dropped out of the bolts and were floating around the hole.

The idle is smoother, especially when the engine is cold. Still not as smooth as the 01 NA Forester I had previously. The engine is also smoother while driving. It seems the on to off throttle transition is less abrupt.

Thanks Peaty….saw this months ago and just forgot about it.

Mike
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Old 06-08-2007, 05:53 PM   #100
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I have an 04 WRX not an STI and i have been having idle problems. It only pops up after driving the car for least several miles and in warm weather. At a stop the idle will run rough either very low like 300 rpms or high at 1000 and has even stalled at times.

anyone know if the WRX's non STI have a similar set up since I am getting this problem now....oh and 54,4000 on the car if that helps any.
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