Replacing Fuel Filter on 03 3.8L - Mustang Evolution

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Old 12-14-2014, 04:23 PM   #1
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Replacing Fuel Filter on 03 3.8L

How do i let the gas pressure out so i can replace my fuel filter, im just trying to save money from tools. 2003 Mustang V6 3.8L


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Old 12-16-2014, 10:10 PM   #2
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Very simple and easy to reach just in front of the gas tank. Is it fuel




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Old 12-16-2014, 10:17 PM   #3
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To let the gas pressure out?


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Old 12-16-2014, 10:20 PM   #4
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Is it fuel injected ?


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Old 12-16-2014, 10:23 PM   #5
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There is a valve on the fuel injection system that you can bleed



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Old 12-16-2014, 10:27 PM   #6
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In your trunk, on the drivers side near the rear, there is the inertia switch which shuts off the fuel pump in the event of a collision. Disconnect the electrical connector from the switch and then start your car and let it idle until the engine dies. This may take a minute or two so be patient.
This will relieve the pressure from the fuel system.
Be sure to reconnect the switch when you are finished or your car won't start.
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Old 12-16-2014, 10:38 PM   #7
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Ah okay thanks man. Ive also heard i could take out the fuel fuse and then let the car run till it dies.


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Old 12-16-2014, 10:41 PM   #8
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Whichever that you choose to do, the end result will be the same.
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Old 12-17-2014, 05:18 AM   #9
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No! There is a fuel pressure line, in the engine bay!!!!!! You can bleed the pressure out with a flat head! It's right in front of the intake manifold, and it looks like a bicycle tire pressure release ! Make sure when you do it to cover the area with a towel, because it will squirt gasoline all over the place when you release it! I can take a picture today of what it looks like.


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Old 12-17-2014, 08:47 AM   #10
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Okay yes if you dont mind cozny, i really apreciate the replies.


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Old 12-17-2014, 10:43 AM   #11
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http://youtu.be/68-tJajLCT0. This is the video I watched. You'll need the fuel line disconnect tool which is about 2 to about 5 dollars if I remember correctly. You don't need the fuel line pressure tool he has especially if your low on money. I simply put a flat head screwdriver and drained the pressure that way. Make sure when you release the pressure to have a towel so fuel doesn't get in the engine bay only the towel. It's a very dirty job, and make sure no matter what your wearing safety glasses. Good Luck !


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Old 12-17-2014, 10:50 AM   #12
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Oh and I forgot! Turn the key twice after replacing the filter! Don't immediately start the engine. After relieving the fuel pressure you will need to let your car build the pressure before turning it on. I say wait about 10 seconds just to be 110% positive that your pressure is built back up!


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Old 12-17-2014, 11:08 AM   #13
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Alright thanks man!


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Old 12-20-2014, 08:32 PM   #14
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Make sure you watch for splashing gas and wear safety goggles. I bought the plastic disconnect tool kit from Autozone and it came off no sweat. I had bought the metal one and returned it. Also to add onto to releasing pressure, I also took the gas cap off.
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