2.5 Oil Starvation Issues? - TriStateTuners.com :: Home of Tristate Auto Enthusiast

JET02WRX · 07-24-2008, 08:20 AM

Didn't see this posted in here. You 04 / 05 2.5L guys... may want to check this out if you've got a lot of mileage.

Have you checked YOUR banjo lately?

**Ender81** · 07-24-2008, 02:12 PM

So does this thing only exist on the 2.5 or only an issue for the 2.5 or what?

JET02WRX · 07-24-2008, 02:47 PM

No, its only on the 2.0. I just said it was 2.5 to throw everyone off.

Kidding....If you take the time and read the article by Deadbolt, there is no mention of the 2.0. It references only the 2.5's. The actual TSB issued by Subaru actually only references the STi, Forester and Baja. A production line change was made in 05 for those 3 vehicles. So it sounds like it only affects 04's and early 05 2.5's. I'm going to check my service manual to see if the 2.0's have one.

04wrbsti · 07-24-2008, 04:24 PM

My '04 had them in it, I removed em about 2 years ago.

As long as they are working properly the screens wont hurt anything. The problem arises when they either clog or get lodged in the oil passage blocking flow.

It only takes about 5 minutes per side to get them out if you're familiar with wrenching on things.

Edit: Actually, i never removed that one. The ones I removed are the AVCS filters, which had similar problems with clogging or getting stuck and would stop your AVCS from functioning resulting in poor idle quality.

**Ender81** · 07-24-2008, 11:20 PM

Quote:

Originally Posted by JET02WRX

No, its only on the 2.0. I just said it was 2.5 to throw everyone off.

Kidding....If you take the time and read the article by Deadbolt, there is no mention of the 2.0. It references only the 2.5's. The actual TSB issued by Subaru actually only references the STi, Forester and Baja. A production line change was made in 05 for those 3 vehicles. So it sounds like it only affects 04's and early 05 2.5's. I'm going to check my service manual to see if the 2.0's have one.

I understand that the article only notes the 2.5 but I also see the TSB was out in Feb. 05 which is well before the 2.5 WRX. Seems odd that there would be a part that filters oil to the turbo but only on the 2.5 and not the 2.0 is all. So my question was really in regards to does the part exist on both engines and is it just a problem on the 2.5 or is it not on the 2.0 at all.

JET02WRX · 07-25-2008, 07:37 AM

TSB States the following:

APPLICABILITY: 04MY FORESTER 2.5L TURBO, BAJA 2.5L TURBO, AND IMPREZA STI 2.5L TURBO.

While i agree its weird it doesn't say anything about the 2.0... i can only conclude from that these filters were only used in 04 for the 2.5L turbo engines.

DaveSTi · 07-25-2008, 06:23 PM

This was posted on the STi forum awhile back, apparently it's an easy fix to just remove them. I haven't touched them and really am not worried about it since I'm still on the stock snail. I'll go through the system when I go rotated.

Jeffros Spec V · 07-25-2008, 06:44 PM

This applies to 2.5 heads right?

Not blocks?

JET02WRX · 07-25-2008, 11:42 PM

Yes sir.

zilvia240 · 07-26-2008, 03:09 PM

interesting info. just learn something new. thanks for the info

foolio · 08-18-2008, 12:53 PM

Yea, back when I worked for SOA the techs out in the field would call from time to time saying they had an engine failure from this problem.

07-24-2008, 08:20 AM	#1
JET02WRX Tri-State Addict Join Date: Jun 2006 Location: Chester Co. Member #2133 My Ride: 2002 WRX Wagon iTrader: (1)	2.5 Oil Starvation Issues? Didn't see this posted in here. You 04 / 05 2.5L guys... may want to check this out if you've got a lot of mileage. Have you checked YOUR banjo lately? __________________ 2002 WRX "Fun-Wagon" Last edited by JET02WRX; 07-24-2008 at 02:51 PM.

07-24-2008, 02:47 PM	#3
JET02WRX Tri-State Addict Join Date: Jun 2006 Location: Chester Co. Member #2133 My Ride: 2002 WRX Wagon iTrader: (1)	No, its only on the 2.0. I just said it was 2.5 to throw everyone off. Kidding....If you take the time and read the article by Deadbolt, there is no mention of the 2.0. It references only the 2.5's. The actual TSB issued by Subaru actually only references the STi, Forester and Baja. A production line change was made in 05 for those 3 vehicles. So it sounds like it only affects 04's and early 05 2.5's. I'm going to check my service manual to see if the 2.0's have one. __________________ 2002 WRX "Fun-Wagon" Last edited by JET02WRX; 07-24-2008 at 02:51 PM.

07-25-2008, 07:37 AM	#6
JET02WRX Tri-State Addict Join Date: Jun 2006 Location: Chester Co. Member #2133 My Ride: 2002 WRX Wagon iTrader: (1)	TSB States the following: APPLICABILITY: 04MY FORESTER 2.5L TURBO, BAJA 2.5L TURBO, AND IMPREZA STI 2.5L TURBO. While i agree its weird it doesn't say anything about the 2.0... i can only conclude from that these filters were only used in 04 for the 2.5L turbo engines. __________________ 2002 WRX "Fun-Wagon"

07-25-2008, 06:23 PM	#7
DaveSTi Tri-State Post Whore Join Date: Mar 2006 Location: Charlotte Member #1591 iTrader: (0)	This was posted on the STi forum awhile back, apparently it's an easy fix to just remove them. I haven't touched them and really am not worried about it since I'm still on the stock snail. I'll go through the system when I go rotated. __________________ Member Journals: To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. / To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. / To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. / To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. / To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures. / To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

07-25-2008, 11:42 PM	#9
JET02WRX Tri-State Addict Join Date: Jun 2006 Location: Chester Co. Member #2133 My Ride: 2002 WRX Wagon iTrader: (1)	Yes sir. __________________ 2002 WRX "Fun-Wagon"

07-24-2008, 04:24 PM	#4
04wrbsti Tri-State Training Wheels Join Date: Jun 2008 Member #7917 My Ride: '04 STi iTrader: (0)	My '04 had them in it, I removed em about 2 years ago. As long as they are working properly the screens wont hurt anything. The problem arises when they either clog or get lodged in the oil passage blocking flow. It only takes about 5 minutes per side to get them out if you're familiar with wrenching on things. Edit: Actually, i never removed that one. The ones I removed are the AVCS filters, which had similar problems with clogging or getting stuck and would stop your AVCS from functioning resulting in poor idle quality.

07-25-2008, 06:44 PM	#8
Jeffros Spec V Tri-State Post Whore Join Date: Mar 2005 Location: Langhorne PA Member #263 iTrader: (0)	This applies to 2.5 heads right? Not blocks?

07-26-2008, 03:09 PM	#10
zilvia240 Tri-State Training Wheels Join Date: Dec 2007 Location: philadelphia pa Member #6434 My Ride: wrb sti iTrader: (1)	interesting info. just learn something new. thanks for the info

08-18-2008, 12:53 PM	#11
foolio Tri-State Aficionado Join Date: Mar 2007 Member #4097 My Ride: 2000 GC/Swap iTrader: (0)	Yea, back when I worked for SOA the techs out in the field would call from time to time saying they had an engine failure from this problem.

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