Fuel Filter
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This is a discussion on Fuel Filter within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Just a quick question, i noticed for the 15,000 mile service subaru reccomends to change it, but i haven't yet ...

  1. #1
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    Fuel Filter

    Just a quick question, i noticed for the 15,000 mile service subaru reccomends to change it, but i haven't yet and have 19k miles. Is the fuel filter really important to change out that early, or can i wait a lil longer?
    2004 WRB 5spd
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  3. #2
    Registered User AjIsDope's Avatar
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    Nah, you can wait. I changed mine but it's not necessary. I would wait until 30k.
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  4. #3
    Registered User 2point5ohyes's Avatar
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    its 15 bucks and 15 mins. do it.
    2000 2.5RS I <3 JDM IH8M

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    Registered User tarbaj's Avatar
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    Quote Originally Posted by 2point5ohyes
    its 15 bucks and 15 mins. do it.
    It took me forever to unbury the fuel pump in my wagon. I never could find out what fuse runs the pump so I had to go unplug it. There are a 1000 foam pieces in the wagon trunk. After that it was fast and easy. Don't be surprised if you get a CEL afterwards. Just unplug the battery for 10 minutes and it will clear it out.

  6. #5
    Registered User AjIsDope's Avatar
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    Quote Originally Posted by tarbaj
    It took me forever to unbury the fuel pump in my wagon. I never could find out what fuse runs the pump so I had to go unplug it. There are a 1000 foam pieces in the wagon trunk. After that it was fast and easy. Don't be surprised if you get a CEL afterwards. Just unplug the battery for 10 minutes and it will clear it out.
    Not the fuel pump. Fuel filter.

  7. #6
    Registered User tarbaj's Avatar
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    Quote Originally Posted by AjIsDope
    Not the fuel pump. Fuel filter.
    Yeah I know. To relieve the pressure in the fule lines you should disconnect the fuel pump then start the car letting it stall. Then start the car again to let it crank. Then the pressure is relieved. Then you change the filter and reconnect the pump. It's all laid out step by step in the service manual.

  8. #7
    Registered User Platinum_REX03's Avatar
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    Quote Originally Posted by tarbaj
    Yeah I know. To relieve the pressure in the fule lines you should disconnect the fuel pump then start the car letting it stall. Then start the car again to let it crank. Then the pressure is relieved. Then you change the filter and reconnect the pump. It's all laid out step by step in the service manual.
    Or you can just let your car sit overnight and the fuel pressure will stabilize.

  9. #8
    Registered User AjIsDope's Avatar
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    Quote Originally Posted by tarbaj
    Yeah I know. To relieve the pressure in the fule lines you should disconnect the fuel pump then start the car letting it stall. Then start the car again to let it crank. Then the pressure is relieved. Then you change the filter and reconnect the pump. It's all laid out step by step in the service manual.
    Oh I thought you were referring to changing the fuel pump. My bad.

    Or you can just let your car sit overnight and the fuel pressure will stabilize.
    That's what I normally do. I have done that on my last 3 cars and have never had any problems.

  10. #9
    Registered User yo vanilla's Avatar
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    there's another trick to changing the fuel filter - just open the gas cap and presto - the pressure is gone! does the manual really say 15K miles? i thought i read 30, and that's when i changed mine
    07 WRX TR | 03 mazda6
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