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Guest Message by DevFuse

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Depressurizing fuel line

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2 replies to this topic

#1 dreamer


    New User

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  • New York

Posted 04 October 2004 - 06:58 PM

Hi Everyone

I'm new to this website and have a question.
I have a 1992 Subaru Loyale and want to change the fuel filter.
A repair manual states that I have to depressurize the fuel system by removing the fuse for the fuel pump at the fuse block and let the car run until the engine stops and remove the negative battery cable after that.

I have removed the appropriate fuse for the fuel pump, but the vehicle remains on... I let it run for over 5 minutes...

Does anyone know the correct way to depressurize the fuel system so I can change the fuel filter.

Any help in this area would be greatly appreciated.

Thanks for your response and enjoy your day!


#2 MilesFox


    Catch this Fox!

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Posted 04 October 2004 - 08:01 PM

just pull the hose off. it will spew a little bit of fuel, actually under a it of pressure. put a rag over the fitting so it wont spray everywhere. its not as dramatic as your repair info makes it sound to be.

use some pliers to twist the hose so it will crack loose, otherwise it will never budge. loosen the fuel hose clam enough to slide it back an inch, past the fitting inside the hose, otherwise it will still want to hold onto the lip on the fitting.

if you mix the hoses up, the line from the filter connects to the bottom fitting on the throttle body

#3 subawoohoo


    Eat, Live, Breath Subaru

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  • tucson

Posted 04 October 2004 - 08:46 PM

yup, im sure someone will fight this due to safety, but i agree, the manual just over dramatizes how pressurized the fuel line is. Just cover with a rag, and rip it off. of course be aware of any hot manifolds or heat shields, im sure an explosion would put a damper on your day.

Tyler J.

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