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I am changing the fuel filter and i cant remember how 2 release the fuel pressure

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If its fuel injected , there should be a little nozzle on the injection line , like on a bicycle tire..

Posted on Sep 26, 2009

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How do I change the fuel filter on a 2003 blazer?


1. Remove your gas cap to relieve any pressure on the tank.
2. If it is easy to see, then is a cap and valve stem assembly on the fuel injection supply rail. A small squeeze on this will relieve pressure on that end. (Use caution for a small amount of fuel may seep out.
3. Your fuel filter should be located along the frame rail underneath your vehicle. Probably about even with the your drivers side door.
4. Remove the filter using normal hand tools on one end. The other end may be fitted with plastic clips that squeeze together to release the fuel line. (If you happen to break a clip they are available at most auto supply stores in the "HELP" section)
5. Remember that you will lose some fuel so be prepared when you remove the filter. USE CAUTION when first breaking the lines apart.. just in case of any pressure..


Best of Luck, and let me know how you come out..

Aug 20, 2011 | Chevrolet Blazer Cars & Trucks

1 Answer

Where is the fuel pressure release in the 03 silverado so i can change the fuel filter? Is it an easy repair i can do myself?


the pressure release valve is located on the fuel rail under the hood at the intake manifold.it should have a cap that is removed and will look like a tire schrader valve and if you push down on the valve it will release fuel pressure.you can also release pressure if you let the car sit for a half hour and disconnect the fuel line,wiggle it as it is almost completely disconnected.you will get some fuel out past the fitting and this should release the pressure also.note you will still get fuel coming out of the filter when removing the lines and the filter from the car.

Aug 12, 2011 | 2003 Chevrolet Silverado 1500

1 Answer

Honda Civic Coupe. Year 2000 1.6. How can I depressurize the fuel system easily to change the fuel filter situated in the engine compartment.


Hi,

IMPORTANT: Do not skip the fuel system pressure release step. Injury and other damage can result!
Safety Step! Relieving Fuel System Pressure
· allow engine to cool
· relieve fuel system pressure
· put on your eye protection
Before you begin the job of replacing your fuel filter, you must relieve the pressure in your fuel system. A fuel injection system operates under very high pressure. If you don't release this pressure before you start unscrewing fuel lines the result can be explosive. Do this before you attempt to change the fuel filter.
To release the pressure in your fuel lines (and fuel filter) you'll need to locate the fuel pump fuse in the fuse box. If you don't have a fuel pump fuse, find the relay that operates the fuel pump. Once you've found the fuel pump fuse or relay, start the car. With the engine running, pull the fuse or relay out. If you pulled the right one, the engine will quickly die. Since it's using all of the pressurized fuel in the system, the fuel lines won't be pressurized when you crack the fittings on your fuel filter.
Now that you've relieved the fuel pressure you can remove the old fuel filter.
If you didn't do this yet, you must go to the previous step and do it. Very dangerous!

Best regards.

Oct 28, 2010 | 2000 Honda Civic

2 Answers

How do you change a fuel filter


All WJ models have two fuel filters, a strainer filter at the bottom of the fuel pump module inside the fuel tank and one exterior filter within the fuel pressure regulator. Both filters are designed for extended service. They do not require normal scheduled maintenance. Filters should only be replaced if a diagnostic procedure indicates to do so.

The combination fuel filter/pressure regulator is located in front of the fuel tank and above the rear axle. It is transversely mounted to a chassis crossmember (left-to-right). The filter/regulator is equipped with 3 fuel line fittings (2 at one end and 1 at the other end). The single fitting facing the left side of the vehicle is the supply line to the fuel rail. The 2 fittings facing the right side of the vehicle are connected to the fuel tank. Of these 2 fittings, the fitting towards the front is used for fuel return to the fuel tank. The fitting towards the rear is a pressure line.

8bac4de.jpg

Fig.: Fuel filter / regulator location


External filter/regulator removal
WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE SERVICING ANY FUEL SYSTEM HOSES, FITTINGS OR LINES, THE FUEL SYSTEM PRESSURE MUST BE RELEASED.

1. Remove fuel fill cap.
2. Remove fuel pump relay from Power Distribution Center (PDC). For location of relay, refer to label on underside of PDC cover.
3. Start and run engine until it stalls.
4. Attempt restarting engine until it will no longer run.
5. Turn ignition key to OFF position.
6. Disconnect negative battery cable at battery.
7. Raise vehicle.
8. Clean area around 3 filter/regulator fittings.
9. Disconnect fuel supply, fuel return and fuel pressure lines at filter/regulator. Special tools may be required.
10. Remove 2 mounting bolts and remove filter/regulator.



External filter/regulator installation
1. Before installing filter/regulator, be sure all fittings are cleaned of all dirt and contaminants.
2. Be sure o-ring is positioned into fuel return fitting in filter/regulator.
3. Apply a small amount of clean engine oil to o-rings.
4. Position filter/regulator to body and install 2 bolts. Tighten bolts. Refer to Torque Specifications.
5. Connect 3 fittings.
6. Connect negative battery cable to battery.
7. Start engine and check for leaks.


Hope helps (remember rated this).

Jul 05, 2010 | 2003 Jeep Grand Cherokee

2 Answers

Where is the fuel filter located on a 2005 Lincoln LS? I drove my LS just before empty. Now I notice when I'm driving it's a little sluggish when trying to accelerate. I would like to change the fuel...


The fuel filter is behind the driver's side wheel. Here is the procedure....


  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2. Relieve the fuel system pressure.
  3. Disconnect the negative battery cable.
  4. Remove the left front wheel well rear splash shield.
  5. Disconnect the fuel tube quick release fittings from both sides of the fuel filter.
  6. Remove the fuel filter bracket mounting bolt, fuel filter bracket, and the fuel filter.

To install:
  1. Install or connect the following:

    Fuel filter into the bracket making sure the flow direction is correct. Tighten the clamp to 15-25 inch lbs. (2-3 Nm). Fuel lines. Tighten the fittings to 22 ft. lbs. (30 Nm).
  2. Tighten the bracket bolts to 62 inch lbs. (7 Nm).
  3. Start the engine and check for leaks.



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May 18, 2010 | 2005 Lincoln LS

3 Answers

Where Is The Fuel Filter Located On A 2003 Ford Explorer V8 And How Do You Change It?


  1. Disconnect the battery ground cable.
  2. Properly relieve the fuel system pressure.
  3. Raise the vehicle on a hoist.
  4. Remove the bolts and the fuel filter heat shield.
  5. Remove the nuts and the fuel filter shield.
  6. Disconnect the quick release and spring lock couplings and remove the fuel filter.

To install:
  1. Remove any fuel line caps.
  2. Install the new fuel filter, connecting the quick-release and spring-lock couplings.
  3. Install the fuel filter shield.
  4. Install the fuel filter heat shield. Torque the bolts to 15 ft. lbs. (20 Nm).
  5. Reconnect the battery ground cable.
  6. Lower the vehicle.
  7. Start the vehicle, check for leaks and repair if necessary.


e38232f.jpg

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Mar 26, 2010 | 2003 Ford Explorer Sport

3 Answers

Need to know what relay to disconect so I can change the fuel filter so theres no gas pressure. or just how to depressurize the fuel lines so I dont spill gas all over


We never release the pressure upon changing a fuel filter. The relay operates only with the key set to the on position. Open the hood and locate the fuel rail to the throttle body. The rail has a fitting with a valve alike the valve on a wheel. Unscrew the cap and press in the valve to release the pressure if you wish. I never heard of anyone doing this although you will need to clean any spillage on the motor before you start the engine. I would just remove the olf filter and let the pressure run out. It is safer this way for you and the vehicle. Use a coffee can to catch the spillage which will be very minimal

Mar 24, 2010 | 2001 Ford F150 Styleside SuperCrew

1 Answer

1998 beetle - how to get the fuel filter off


The fuel lines are pressurized so you will need to relieve the pressure before you try and remove the filter or you will get a face full of gas. The filter comes off by pushing the fuel line toward the filter and then pushing the quick release button on the fuel line. The fuel line should then decouple - the filter lives under the car near the right rear tire (just in front) Good luck and be careful

Apr 25, 2009 | 1998 Volkswagen Beetle

1 Answer

Fuel pressure valve


You don't need to relieve the fuel pressure unless you are doing this while the engine is running.. 90% of the pressure is released upon shutting off the engine.
If you disconnect he filter there may be a bit of fuel that comes out..

But should you just feel you need to release the pressure look on the fuel rail in the engine compartment and there you will see stainless pipes going to the injectors on one of them you will see a black cap and under that is a valve like a bike has. press the center and this will release any remaining pressure..

Mar 10, 2009 | Ford E-350 Super Duty Cars & Trucks

1 Answer

Fuel pump relay


Fuel pump in back in the gas tank.

May 29, 2008 | 2003 Chevrolet Tracker

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