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Hi. They are buried way down on top of the engine. Its just a matter of removing everything directly on top of the engine to get at the fuel rails. Just out of curiosity why are you removing them?. Jon
This engine has fuel lines that run to each injector from the injector pump. On the older Fords they touch each other in places. This constant vibration from the engine has caused a pin hole in one of your fuel lines to the injector. You will need to find the bad line. Can be hard as some of these are buried and hard to see. The replacement line will need to be purchased from Ford as each fuel line has to be a certain length and they are all high pressure lines. I have seen this many times in the older Fords.
first relief fuel pressure before disconnecting fuel lines remove fuel pump fuse or relay start engine let it idle until stall out lack fuel fuel now fuel pressure is reliefed. you have to remove top upper air cleaner housing, you have to remove whole entire air cleaning system because the fuel lines with fuel injectors is under the air cleaner filament you have to remove entire fuel line with fuel injector in order to replace fuel injector.
YEP REMOVE TOP ENGINE COVER AND DISCONNECT INJECTORS ELECTRICAL CONNECTOR,REMOVE FUEL RETURN LINE FROM INJECTOR, REMOVE FUEL INJECTOR HIGH PRESSURE LINE, REMOVE FUEL INJECTOR RETAINER AND RETAINING BOLT,THEN REMOVE FUEL INJECTOR FROM THE CYLINDER HEAD. YOU NEED A FUEL INJECTOR EXTRACTOR TOOL 9075A ON TO INJECTOR AND CYLINDER HEAD.YOU DONT HAVE TO REMOVE THE ENGINE.
That sounds like the fuel rail the top of the injectors have O-rings that seals the fuel rail were the injector goes in it if one has gone bad it will leak fuel from around the injector. Hope this helped.
the hood of the Kia Shortage view the interior. From front to back you
will see the grill, the radiator, the radiator fans, and the engine. On
the top of the engine is the valve cover---an aluminum cover that
encloses the top of the engine---that is bolted in place.
behind the valve cover for an aluminum rail that goes across the back
of the engine. Inserted at equal distances---both below and into the
rail---are tubular injectors that are also inserted into the engine.
The aluminum rail is called the fuel rail. It is a hollow tube that
holds the tops of the injectors and supplies them with fuel. Each of
the injectors are also plugged into the engine wiring harness.
the injectors for any signs of fuel leaks. Although rare, leaks do
occur, especially due to age and mileage. If leaking, do not drive the car as there is an increased risk of fire. Repair the injector seals before driving the car again.
disconnect the battery depressurize the fuel rail from the test port schrader valve unplug the injector clips one at a time marking them from front of engine # 1 - # 6 at rear of engine unbolt the fuel rail from the intake gently wiggle the fuel rail while pulling it up the injectors will stay in the fuel rail undo the clips on the rail holding the injectors to it changing them all greasing the o-rings on top and bottom of injectors install the fuel rail and injectors back on engine plug them in reconnect battery cycle key on and off a few times bleed air out of fuel rail and your done this is for the 4.0 engine as you did not specify what you have . the v8 engine is similar hope this helps
The procedure to replace the fuel injector in Buick Lesabre Is as follows:--
1) you will require a ordinary flat screwdriver, a needle nose pliers, a 10 mm socket, 6" extension and 1/4" ratchet. 2) First of all take the engine cover out then pinch the fuel rail connecting fittings at the base and lift off the two hoses. Note:-- Do this when your engine is cold.3) Then bleed off the pressure in the fuel rail first. Take care you don't damage the fuel rail while bleeding the fuel pressure because a new one will cost over $ 200. 4) Loosen and remove the four nuts holding down the fuel rail. Disconnect all six electrical connectors to each injector. 5) Carefully lift up the fuel rail. Pry off the clip holding the top of the injector to the fuel rail. Pull the injector out of the fuel rail and then out of the intake manifold. 6) Install the new injectors and replace top and bottom o-rings. Reassemble and check for any fuel leaks.Thanks.
When you install new fuel injectors or are replacing the o rings, apply some lubricant to the o rings to allow for easy installation. I like to wet them with PB Blaster before I put them on the injectors. Also before you remove the injectors, blow out the area around each injector and the whole top of the engine with compressed air through a narrow wand (it gives you a very high velocity air blast that will remove all the impurities from the injector areas to keep them from getting into the engine when you pull out and install the o rings. I like to start at one side of the engine and work my way to the other and after that do a good overall blasting of the engine with compressed air to make sure all the sand and whatever else is out of where you are working. (Be sure to wear safety goggles when doing this procedure and at all times when working on a vehicle). When installing injectors, be sure to have all of them lined up with the holes and press evenly and firmly (you may have to wiggle the fuel rail a bit to get the injectors to go into the holes). Be sure to install all the fuel rail bolts and tighten them to specification. Turn the key on but do not start the engine to verify the injectors are not leaking. If you still have a leak, you may have a cracked injector body or a seal leaking on an injector.