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Old 03-02-2012, 09:33 AM   #1
WhiteBgeye02
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Default 05 wrx's. no fuel filter?

so my 05 wrx has no fuel filter in the engine bay and i would like to change it for a new one. i have read that its part of the fuel tank? anyone got some insight on were to look so i can figure out what i need and change it? or a way i can bypass its current location and just add one in the engine bay like 02-05 wrx's?
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Old 03-02-2012, 09:36 AM   #2
dangerousatom
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Its in the tank.....yes GAY! in know

Pull out the back seat and there is an access panel on the passengers side. Remove it and keep removing bits till you have the pump assembly out.

Last edited by Unabomber; 04-17-2012 at 11:02 PM. Reason: removed illegal content
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Old 03-02-2012, 09:39 AM   #3
WhiteBgeye02
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like with the fuel pump assembly when i pull it out? im gunna swap that with my walbro today/tomorrow if i can find time. i would really like to just bypass the in tank system so when i go to e85 i can put a new one on easily a week later after the alcohol cleans everything in the system out
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Old 03-02-2012, 09:45 AM   #4
dangerousatom
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Yes you can "delete" the filter and put an after market one in line in the engine bay.

You can run with out the filter but I would not do it long term ...more then 3-4 tanks. There are tiny filters ( size of a pencil eraser ) in the injectors but they will clog fast if there is dirt in the lines and even a small amount in them will throw off the flow-#/spray pattern.
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Old 03-02-2012, 09:48 AM   #5
lavid2002
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? If there is no filter what is the canister the fuel lines connect to by the drivers side strut tower?
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Old 03-02-2012, 10:06 AM   #6
WhiteBgeye02
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the incoming lines so i think the one that leads to the top fitting on the fuel rails if my mind serves me correct. i have also got two of those little black circle things. check valves? should i delete the incoming one if i add the fuel filter in the engine bay?
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Old 03-02-2012, 11:00 AM   #7
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The black "canister" that is 3/4 the size of a soda can is a fuel filter, but it went into the tank in 05-06.

The small black 1/2 marshmallow size things in the fuel lines are check valves. you can keep or delete them, neither of my cars have them. They basically keep fuel in the lines so you dont have to wait 1-2 sec to prime the fuel system before starting.






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Old 03-02-2012, 02:19 PM   #8
WhiteBgeye02
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yeah i guess lol. just going to move it to engine bay. screw that tank ****! atleast they didnt change the access point or something like others cars were you have to drop the entire tank.
thanks for the info and diagrams! good for future ppl wondering
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Old 03-02-2012, 05:17 PM   #9
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Here you go. Follow this and it's not bad. Spent more time removing the interior than the actual work. AND don't do it on a full tank of gas.

http://www.iwsti.com/forums/how-inst...placement.html
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Old 04-17-2012, 09:28 PM   #10
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Man I'm trying to find my filter and can't find it in the engine bay...I have a 04 STi... it seems they moved it back since 04 STi's not 05.
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Old 04-17-2012, 10:20 PM   #11
WhiteBgeye02
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well you either have the holder on the drivers side strut tower or you dont. if you dont then its in the back. i have yet to get back there and do the switch to put my filter up front.
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Old 04-19-2012, 02:15 PM   #12
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Also, before you do this, order the 'packing', or seals for the sending-unit to the tank and the cover to the floor.

Each seal (packing) is really inexpensive (IIRC under $10 each) and should not be overlooked or disregarded.
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Old 04-19-2012, 04:53 PM   #13
WhiteBgeye02
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i know what you mean. when i did it before the cover that holds the whole assembly prob had a small leak somewere. could smell a hint of gas if i filled it to the brim. as for the second seal its just a piece of foam that goes between the trunk access door and the trunk floor? no reason not to reuse that.
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Old 04-19-2012, 07:12 PM   #14
wongsubi
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So my nearest subaru dealer don't sell the filter separate... I've read that some people also ran into this issue. I'm thinking of deleting the filter also and putting an aftermarket filter in the engine bay as someone mentioned above.

Never done it before so was wondering if there is a write up anywhere on how to do this, and which aftermarket filter do you guys recommend?
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Old 04-20-2012, 09:30 AM   #15
WhiteBgeye02
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get the bracket from 02-04 wrx's. it goes on the driver side strut tower then just get a subaru filter and put it there. nothing too hard.
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Old 04-20-2012, 12:13 PM   #16
wongsubi
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Quote:
Originally Posted by WhiteBgeye02 View Post
get the bracket from 02-04 wrx's. it goes on the driver side strut tower then just get a subaru filter and put it there. nothing too hard.
What about taking the filter out of the pump, will the pump function without a filter? Do I leave the pump filter in and just add an external filter between the lines in the engine? Can anyone help a newbie out?

Last edited by wongsubi; 04-20-2012 at 06:24 PM.
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Old 04-26-2012, 04:09 PM   #17
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In 2004 the STI move the fuel filter to the Fuel Pump Assembly in the fuel tank. In 2005 the WRX fuel filter moved to the same place. The dealership does sell the part but it is not listed separately on their "parts lookup" menu. The part number is 42072FE020. If you go to the dealership they can order this part for you. Here is a picture of what it looks like:
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