Difference between revisions of "Change a Fuel Filter"
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== Steps == | == Steps == | ||
===Relieving the Pressure in the Fuel System=== | ===Relieving the Pressure in the Fuel System=== | ||
| − | #Locate your vehicle’s fuse box. In order to relieve the pressure in your fuel system, you will need to run the vehicle without the fuel pump functioning for a short time. In order to prevent the fuel pump from turning on with the engine, you will need to locate the fuse box that contains the fuel pump fuse. Most vehicles have a fuse box both in the interior of the car as well as under the hood. Refer to your vehicle’s owner’s manual to locate the appropriate fuse box.<ref>http://www.dummies.com/home-garden/car-repair/fuel-system/how-to-change-your-vehicles-fuel-filter/</ref> | + | #Locate your vehicle’s fuse box. In order to relieve the pressure in your fuel system, you will need to run the vehicle without the fuel pump functioning for a short time. In order to prevent the fuel pump from turning on with the engine, you will need to locate the fuse box that contains the fuel pump fuse. Most vehicles have a fuse box both in the interior of the car as well as under the hood. Refer to your vehicle’s owner’s manual to locate the appropriate fuse box.<ref name="rf1">http://www.dummies.com/home-garden/car-repair/fuel-system/how-to-change-your-vehicles-fuel-filter/</ref> |
#* If you do not have an owner’s manual, try referring to the auto maker’s website. | #* If you do not have an owner’s manual, try referring to the auto maker’s website. | ||
#* The fuse for the fuel pump is often in the fuse box locating in the interior of the vehicle. | #* The fuse for the fuel pump is often in the fuse box locating in the interior of the vehicle. | ||
| − | #Remove the fuse for the fuel pump. Once you have located the correct fuse box, use the diagram provided on the fuse box cover or in the owner’s manual to identify the fuse that powers the fuel pump. Use a pair of needle nose pliers or plastic tweezers to remove the fuse.<ref | + | #Remove the fuse for the fuel pump. Once you have located the correct fuse box, use the diagram provided on the fuse box cover or in the owner’s manual to identify the fuse that powers the fuel pump. Use a pair of needle nose pliers or plastic tweezers to remove the fuse.<ref name="rf1" /> |
#* With the fuse removed, the fuel pump will not function when you start the engine. | #* With the fuse removed, the fuel pump will not function when you start the engine. | ||
#* There is still fuel and pressure in the fuel lines running from the rear to the front of the vehicle. | #* There is still fuel and pressure in the fuel lines running from the rear to the front of the vehicle. | ||
#* Check the auto maker’s website for a fuse diagram if you do not have one. | #* Check the auto maker’s website for a fuse diagram if you do not have one. | ||
| − | #Ensure the vehicle is not in gear. Although the engine will not be receiving a fresh supply of fuel from the gas tank, there will be enough fuel left in the lines for it to start and run briefly. Make sure automatic vehicles are in park and vehicles equipped with a standard transmission are in neutral with the parking brake engaged.<ref | + | #Ensure the vehicle is not in gear. Although the engine will not be receiving a fresh supply of fuel from the gas tank, there will be enough fuel left in the lines for it to start and run briefly. Make sure automatic vehicles are in park and vehicles equipped with a standard transmission are in neutral with the parking brake engaged.<ref name="rf1" /> |
#* Although the vehicle will only run briefly, it will still move if left in gear. | #* Although the vehicle will only run briefly, it will still move if left in gear. | ||
#* Be sure the parking brake is engaged if you are in a standard vehicle. The parking brake is optional but advised for automatics. | #* Be sure the parking brake is engaged if you are in a standard vehicle. The parking brake is optional but advised for automatics. | ||
| − | #Start the engine. Insert the key into the ignition and turn it to start the motor just as you would any other time. The engine should start easily as it expends the fuel remaining in the fuel system past the fuel pump.<ref | + | #Start the engine. Insert the key into the ignition and turn it to start the motor just as you would any other time. The engine should start easily as it expends the fuel remaining in the fuel system past the fuel pump.<ref name="rf1" /> |
#* If the engine turns over but then sputters out, it may not have had sufficient pressure in the lines to force the fuel into the engine. | #* If the engine turns over but then sputters out, it may not have had sufficient pressure in the lines to force the fuel into the engine. | ||
#* If the engine dies, the fuel pressure will be sufficiently relieved. | #* If the engine dies, the fuel pressure will be sufficiently relieved. | ||
| − | #Allow the engine to run for a minute before shutting it off. Depending on the fuel system in your vehicle and its average fuel consumption, the amount of time it will run without a functioning fuel pump can vary greatly. It does not need to run until it dies, however. Instead just allow it to run for a minute or two before turning the key back to off.<ref | + | #Allow the engine to run for a minute before shutting it off. Depending on the fuel system in your vehicle and its average fuel consumption, the amount of time it will run without a functioning fuel pump can vary greatly. It does not need to run until it dies, however. Instead just allow it to run for a minute or two before turning the key back to off.<ref name="rf1" /> |
#* Without the fuel pump functioning, the pressure will be relieved in the fuel lines fairly quickly. | #* Without the fuel pump functioning, the pressure will be relieved in the fuel lines fairly quickly. | ||
#* Allowing the engine to run until it dies may make it difficult to start it again. | #* Allowing the engine to run until it dies may make it difficult to start it again. | ||
| − | #Re-insert the fuel pump fuse. With the pressure relieved from the fuel system and the engine off, you can re-insert the fuse that powers the fuel pump. Place the cover back on the fuse box and return any pieces of the trim you may have needed to remove to access it.<ref | + | #Re-insert the fuel pump fuse. With the pressure relieved from the fuel system and the engine off, you can re-insert the fuse that powers the fuel pump. Place the cover back on the fuse box and return any pieces of the trim you may have needed to remove to access it.<ref name="rf1" /> |
#* Make sure the vehicle is off before replacing the fuse you removed. | #* Make sure the vehicle is off before replacing the fuse you removed. | ||
#* Do not start the engine again after inserting the fuel pump fuse. | #* Do not start the engine again after inserting the fuel pump fuse. | ||
